{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0xe3431c8e9d53d7f504bd6cda897021f5a4bb8c7c86695996b9051dea858402f1",
    "signature": "0xab58daad9d4819662b1ba2ca6aad9c4223e8eb3fe139ac0ea78f6ddcd2e5053d710fc5cf6637f779e66b040fef459d44913f1ffae4fd1591247f0916720d74ed1c",
    "signer": "0x39788E2D020D54760872178Cea0d5AF12732F02D",
    "userId": "720903941"
  }
}