{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xef4fb18c50ae89d1c5756e4b7680a278d15b8b082b700d477f5ec38921fd723e",
    "signature": "0x2e6913b1480ed08c3183b3424e713b9112daf8b66c8b595e188bd6b0b76c331947c6c2316ebe3b1072f63286ade241bd4d3a47433f3ea0a3c9e876849d366f7e1b",
    "signer": "0xaf496827546F9662eC424Ac93F0f119E5219d62d",
    "userId": "726502507"
  }
}