{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61231",
    "entityType": "User",
    "nonce": "0x74a0a8c3c43ebbd57e0ab81f066ba2ba993097bb523535c12ae2608933321681",
    "signature": "0x2af39bac81d08c87a20cda5eaf8cf744c419262227b74bd0fa7bd05434ff3b9469146520a261681c2f83040ed72b03785c1aeb6bea2bcd5b781c166a0b6b65d81b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}