{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0b615b9af398db6b37f5bc6b2902d1581d813d9fed852ba856ba7f29b92ffe2e",
    "signature": "0xac953e1c96f6e1c3681297180ab70f8b80f5cd8d47b0a38ba1af7f8905f555526655dbbeef1c38cdd82c078ef946e67c532489cdfc668a4fdb170c9a35cb99921b",
    "signer": "0xDccEC5d3AD9305e7ec833AA1050e738DCB53002e",
    "userId": "235716967"
  }
}