{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xf67df77a4ff057c0b919c38671e706490f1a3dfdcd52ba9d710786d8ae2d8ca2",
    "signature": "0x1763f425fdc4fde81c6624bab4fd632d12e5b522368854735fe2b5d6993bdc6709d4051a89d53f9f5831c59d1ae862140a9fa8e4d6e88d7ec40366f86783f6b01b",
    "signer": "0xfa0b7c5C31eBA7622AfE516eb7b8aD45EFB4BD28",
    "userId": "734513560"
  }
}