{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135992",
    "entityType": "User",
    "nonce": "0x2922e302ece6866299b680b96aaede792c241c41ee3c601472b3dddae6aba8f8",
    "signature": "0xccedb271e610a9399d719a336018393653130e4bc6541e86f5fa719ae63a4d3829d4421a340ee0f5fcafd29c4f0662206df13368b08d60266446ffd5f54f7e4c1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}