{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "345160",
    "entityType": "User",
    "nonce": "0x4fb698db67f569062f988a82f4f66bfe65ee529201385368228dec7da31f94f9",
    "signature": "0xfd6a0d16c8f6805416fcdca9f4e7c1ddac240abd38f9260a685462eb729ae93e404aa177e34ec956440357d11d1fca0ef7e3146c6bcaa6c910080b575a5cc71a1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}