{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "848746837",
    "entityType": "User",
    "nonce": "0x33479cc2e0b1030db287b5f5cea2f04a5cb147415ec58ddceed6e155b54cc5ed",
    "signature": "0x4ee022e8512cb161a86536f974bafc9c5ad7b30f77753cf2dca865b64a08631c02169b10e9e157414d263b634bb07d3675fa505f1508ab8e48a206e3682e6f3d1b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}