{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3799",
    "entityType": "User",
    "nonce": "0x52c6fd74129ce01b22616e53da831b7b68cf7e41659581abcef4383300b130df",
    "signature": "0x4cf295b0cd9fcfa054258e9e45f72173e2462dda5b5b7e868a5cd51f9769b0380e24b3f4f8800f8bebe14320209483a2db94aa8d3e57da53f291347be68897871b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}