{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142974",
    "entityType": "User",
    "nonce": "0x085dfe80fe00653809acb1f2697efbef1fc6ddece58ea3f0c2aed66677dfc599",
    "signature": "0x6391d2368c0fde6065ca88009b8e48e0147d9e83d7184b32ddb93179821ffc7451aebea300208997a83a29a23397bd49467d10204f4f224121907a6f9c4da9c91b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}