{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40274",
    "entityType": "User",
    "nonce": "0x14051b2d8440d772e4222c19c604bf58e0743a6ec2fc23f4582aa8dea903f60d",
    "signature": "0xd223f56697c606f6648272c00ca9b752ce38deb3053d03a68fc6f4290aaa4f350e12e466dc730dd78c1ddefc00755ee86cc44c7aebb1460a704ab87573cbe71e1b",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}