{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951116729",
    "entityType": "User",
    "nonce": "0xe3909d4966f72fe9bace1140fc6d58c0ef9f396555a1cf00a02cc56c66195ab2",
    "signature": "0x49541b5f758abb21933238d40808a2867d3910bc85518f719d1398218c088eb55b809077035129b1e3422b9484cd1431a955968ab523499ffc7f4b1ebe5030b61b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}