{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5642",
    "entityType": "User",
    "nonce": "0x484c7fe24389c65506b32c777b3ef2598723bbdb3ea53de5bbb4997337fbaf1b",
    "signature": "0x67d8000b76182fa278c1e81f0c8ef7f510621ec9dbd3b7a795b65e751fb0eff82885c53105a60ef8ff0f38ea00bb4e3da5ef45a54076d16c45609be21f03ecea1b",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}