{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707937",
    "entityType": "User",
    "nonce": "0x8daa767ab2427f0b55f981f685d75436741b577e62b52cd99d13e1edfacb600d",
    "signature": "0xb985c4c2d0c3bb6c55e981ee5ad136aafb7f70ce8e37c09aa5138d0530fd1b160dadd78eadfa639529b3b754a5e53522a37fd8275a5d6c7ac10530e4cc6e59e11c",
    "signer": "0x505dBce1FfDce9e8414E180BB911AbDA9d811131",
    "userId": "58461"
  }
}