{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0xef73b4480e82554c9cfc7b263e832f1501f0f8a1ec2049a3bc42c8e6fa98b2c6",
    "signature": "0x20b47b78dd965d73b5619429cb2110d0b454e29a1aa52d2571a4a13b106886657a0044c0a164a7d64d7be131b5efab737592ff1395b1433db794472efea56ecb1c",
    "signer": "0xC1c390791Cd8584Bc0D056AdDe5c3D747aA694d3",
    "userId": "395219571"
  }
}