{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108427",
    "entityType": "User",
    "nonce": "0x08477690f9b99b50ccc631802351e6a34e04e88bebfa429458bb799a1c5d2ed8",
    "signature": "0xff1c9780936244b3fc9fe08456c068fb6e4760419c02105f64b6f5d296b8a704544f6af260dd5689333adea1f22023dadd748a5073fe7d99cb18b350c44eb1b31c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}