{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "431509",
    "entityType": "User",
    "nonce": "0xcb96030733db678bd91054be62a16f4a50d74e72d5ff4bee99b8605987f8e589",
    "signature": "0x488711db905807571ef6692340c22f155d27120606ee6f17ecfe4c2b6c8764d55daf86811701899b6b4aca48033839dfa08e8c9bf54f3e51907e4648cda98eca1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}