{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984204836",
    "entityType": "User",
    "nonce": "0x63e1afd8452f6e32bd3319d0cbf4789805daa659465602a25012fe43821c74e7",
    "signature": "0x9fd26741ed49042e05f3003640d1f129385c45543bb2cf0075312a9e4c5556581adc31a28ea042b44891a58b2b40711ca6b05130802bf45f126a0fa7f21f011e1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}