{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313260",
    "entityType": "User",
    "nonce": "0xd8711304b1e3fe60b76abcbaba69d7e91830d4f0066000845c608c73738a281d",
    "signature": "0xd0965f718d398fc273a1196e097e7dc54b4a989789216492e206b4141b8e520d48df0f94ad29f34a53b6817c91656aa40ec6fbe84811e3fb559a1c3d161423691b",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}