{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1224",
    "entityType": "User",
    "nonce": "0x6e5601e8326a14e205fd1fcd32b65e057a7d3231da1ad5f02f3b656e8ecfc0b8",
    "signature": "0x7e77d3bcfe4aa982eff26dae2a2ed73df3471300e4485132a0df089e249fa1f5148fcd417d693d6646a7bbdbea2cae1fce245de002ec4050e086dee03bd53f8a1c",
    "signer": "0xb001DCb64Bf57b3EcC76C4Fe5AbfE2a8B084D6ba",
    "userId": "641557420"
  }
}