{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "282575",
    "entityType": "User",
    "nonce": "0x0af52d7fa6667a6d8a80fe5bffce2c44ed135c68934da83b2cb355286ee658b2",
    "signature": "0xe1a1ee3d2c32d8f3a025bcbfe549f49584d0a686e6cc2f3ce598cc86c6e0e461459f752318d4bcad869ccdb11f5d35ed93be1731bbcea3f8f1017f42514cb3441b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}