{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326584",
    "entityType": "User",
    "nonce": "0x5503777aa90ba4a0c068264817f9232501353e019f03895ccec6c826088949f9",
    "signature": "0xb1f5b49509b1b70e030b7497c12b6568cdc89b9c4d14d65d1f6a8c29a35eff683e2a8e959128cb4549181b056b727a0cb120d7354c0b3696d1044ac407d62dc91c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}