{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52954",
    "entityType": "User",
    "nonce": "0x6046672809e8e2a1d1cc81b6cca010d6ab71d1cee82c14bfb69f8e89165720cc",
    "signature": "0x2e0de7ba37ff8c7b0ccf229a811bfe4d170c48971f9d425fa83b8e66e6023d897802b956cf75b57dd5fc1719aad71dc9658f87d64fa22062fa3c45a7f2722b5a1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}