{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632918751",
    "entityType": "User",
    "nonce": "0x0f51d35b8e33f3975f719e109055f1781e4872940f3e2846194f75de844b8dfc",
    "signature": "0xd4e1094990fdbc63b8a145c67cf434494e22fc1fb10491fef026ebab5d76a15d56fabd02af41990c7122f559a3ee71d4056e710b7dcb73456e953034b1e955581b",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}