{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "931487252",
    "entityType": "User",
    "nonce": "0x7c97cb80f13ddbfbfa0843e9bc629f7d4b2bc05b8502815f5589e4711167af4f",
    "signature": "0x61599e32b1203d633d1e4e3e2a8a6b65291274b3ab0d7d8f6c58beaa05393f6f5a530eeb14d5288ac192221c2787f1573003fb24b4a578e309d344785b897ba91b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}