diff --git a/src/main/kotlin/dev/usbharu/hideout/activitypub/service/tmp/AbstractActivityPubProcessor.kt b/src/main/kotlin/dev/usbharu/hideout/activitypub/service/tmp/AbstractActivityPubProcessor.kt
index ff23a65e..6a3aba7e 100644
--- a/src/main/kotlin/dev/usbharu/hideout/activitypub/service/tmp/AbstractActivityPubProcessor.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/activitypub/service/tmp/AbstractActivityPubProcessor.kt
@@ -9,7 +9,7 @@ import org.slf4j.LoggerFactory
 abstract class AbstractActivityPubProcessor<T : Object>(val transaction: Transaction) : ActivityPubProcessor<T> {
     private val logger = LoggerFactory.getLogger(this::class.java)
 
-    override suspend fun process(activity: T) {
+    override suspend fun process(activity: ActivityPubProcessContext<T>) {
         logger.info("START ActivityPub process")
         try {
             transaction.transaction {
@@ -22,6 +22,6 @@ abstract class AbstractActivityPubProcessor<T : Object>(val transaction: Transac
         logger.info("SUCCESS ActivityPub process")
     }
 
-    abstract suspend fun internalProcess(activity: T)
+    abstract suspend fun internalProcess(activity: ActivityPubProcessContext<T>)
 
 }
diff --git a/src/main/kotlin/dev/usbharu/hideout/activitypub/service/tmp/ActivityPubProcessContext.kt b/src/main/kotlin/dev/usbharu/hideout/activitypub/service/tmp/ActivityPubProcessContext.kt
new file mode 100644
index 00000000..6f45fd20
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/activitypub/service/tmp/ActivityPubProcessContext.kt
@@ -0,0 +1,14 @@
+package dev.usbharu.hideout.activitypub.service.tmp
+
+import com.fasterxml.jackson.databind.JsonNode
+import dev.usbharu.hideout.activitypub.domain.model.objects.Object
+import dev.usbharu.httpsignature.common.HttpRequest
+import dev.usbharu.httpsignature.verify.Signature
+
+data class ActivityPubProcessContext<T : Object>(
+    val activity: T,
+    val jsonNode: JsonNode,
+    val httpRequest: HttpRequest,
+    val signature: Signature?,
+    val isAuthorized: Boolean
+)
diff --git a/src/main/kotlin/dev/usbharu/hideout/activitypub/service/tmp/ActivityPubProcessor.kt b/src/main/kotlin/dev/usbharu/hideout/activitypub/service/tmp/ActivityPubProcessor.kt
index 919bf836..350f1aea 100644
--- a/src/main/kotlin/dev/usbharu/hideout/activitypub/service/tmp/ActivityPubProcessor.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/activitypub/service/tmp/ActivityPubProcessor.kt
@@ -4,7 +4,9 @@ import dev.usbharu.hideout.activitypub.domain.model.objects.Object
 import dev.usbharu.hideout.activitypub.service.common.ActivityType
 
 interface ActivityPubProcessor<T : Object> {
-    suspend fun process(activity: T)
+    suspend fun process(activity: ActivityPubProcessContext<T>)
 
     fun isSupported(activityType: ActivityType): Boolean
+
+    fun type(): Class<T>
 }
diff --git a/src/main/kotlin/dev/usbharu/hideout/activitypub/service/tmp/InboxJobProcessor.kt b/src/main/kotlin/dev/usbharu/hideout/activitypub/service/tmp/InboxJobProcessor.kt
new file mode 100644
index 00000000..1489765c
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/activitypub/service/tmp/InboxJobProcessor.kt
@@ -0,0 +1,94 @@
+package dev.usbharu.hideout.activitypub.service.tmp
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.module.kotlin.readValue
+import dev.usbharu.hideout.activitypub.domain.model.objects.Object
+import dev.usbharu.hideout.activitypub.service.common.ActivityType
+import dev.usbharu.hideout.activitypub.service.objects.user.APUserService
+import dev.usbharu.hideout.core.domain.exception.FailedToGetResourcesException
+import dev.usbharu.hideout.core.external.job.InboxJob
+import dev.usbharu.hideout.core.query.UserQueryService
+import dev.usbharu.hideout.util.RsaUtil
+import dev.usbharu.httpsignature.common.HttpHeaders
+import dev.usbharu.httpsignature.common.HttpRequest
+import dev.usbharu.httpsignature.common.PublicKey
+import dev.usbharu.httpsignature.verify.HttpSignatureVerifier
+import dev.usbharu.httpsignature.verify.Signature
+import dev.usbharu.httpsignature.verify.SignatureHeaderParser
+import kjob.core.job.JobProps
+import org.slf4j.LoggerFactory
+
+class InboxJobProcessor(
+    private val activityPubProcessorList: List<ActivityPubProcessor<Object>>,
+    private val objectMapper: ObjectMapper,
+    private val signatureHeaderParser: SignatureHeaderParser,
+    private val signatureVerifier: HttpSignatureVerifier,
+    private val userQueryService: UserQueryService,
+    private val apUserService: APUserService
+) {
+    suspend fun process(props: JobProps<InboxJob>) {
+
+        val type = ActivityType.valueOf(props[InboxJob.type])
+        val jsonString = objectMapper.readTree(props[InboxJob.json])
+        val httpRequestString = props[InboxJob.httpRequest]
+        val headersString = props[InboxJob.headers]
+
+        logger.info("START Process inbox. type: {}", type)
+        logger.trace("type: {} \njson: \n{}", type, jsonString.toPrettyString())
+
+        val map = objectMapper.readValue<Map<String, List<String>>>(headersString)
+
+        val httpRequest =
+            objectMapper.readValue<HttpRequest>(httpRequestString).copy(headers = HttpHeaders(map))
+
+        logger.trace("request: {}\nheaders: {}", httpRequest, map)
+
+        val signature = parseSignatureHeader(httpRequest.headers)
+
+        logger.debug("Has signature? {}", signature != null)
+
+        val verify = signature?.let { verifyHttpSignature(httpRequest, it) } ?: false
+
+        logger.debug("Is verifying success? {}", verify)
+
+        val activityPubProcessor = activityPubProcessorList.firstOrNull { it.isSupported(type) }
+
+        if (activityPubProcessor == null) {
+            logger.warn("ActivityType {} is not support.", type)
+            throw IllegalStateException("ActivityPubProcessor not found.")
+        }
+
+        val value = objectMapper.treeToValue(jsonString, activityPubProcessor.type())
+        activityPubProcessor.process(ActivityPubProcessContext(value, jsonString, httpRequest, signature, verify))
+
+        logger.info("SUCCESS Process inbox. type: {}", type)
+    }
+
+    private suspend fun verifyHttpSignature(httpRequest: HttpRequest, signature: Signature): Boolean {
+        val user = try {
+            userQueryService.findByKeyId(signature.keyId)
+        } catch (_: FailedToGetResourcesException) {
+            apUserService.fetchPersonWithEntity(signature.keyId).second
+        }
+
+        val verify = signatureVerifier.verify(
+            httpRequest,
+            PublicKey(RsaUtil.decodeRsaPublicKeyPem(user.publicKey), signature.keyId)
+        )
+
+        return verify.success
+    }
+
+    private fun parseSignatureHeader(httpHeaders: HttpHeaders): Signature? {
+        return try {
+            signatureHeaderParser.parse(httpHeaders)
+        } catch (e: RuntimeException) {
+            logger.trace("FAILED parse signature header", e)
+            null
+        }
+    }
+
+    companion object {
+        private val logger = LoggerFactory.getLogger(InboxJobProcessor::class.java)
+    }
+}