{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x399dc453b83fb5c85e211ebeb8ac04180d5ae0d0b9e35fe2ad30e8526580976e",
    "signature": "0xbd37abce1d69a9e39be41e043253dacccad8c4913aa36a627750ee4ac62f8eed1e257a71ce864eb9500b2d8bf2bc611c1ff938943c886f823f5df0c44220cf901b",
    "signer": "0x138B6ac6EcE2bea5eAb147DBdDe9E1a09717a3b3",
    "userId": "736985209"
  }
}