{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341",
    "entityType": "User",
    "nonce": "0x2159537e73f5bd9fa7d8dcfc7ad3b73c4fde1118ba9d96e6a6fea27a0db154e2",
    "signature": "0xcb9ff44b650a89100e07d978a8942fe3453dac882bfce0440ed042fff30a57de2da4744d581f4d5e6860467c8909ac4bf98dfa9acd420ee0e0d767e9fc0c89e51b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}