{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201563",
    "entityType": "User",
    "nonce": "0x532db77f3d43d75536a36374b3870d108c72e0bc192709fb48cfc319f4e6f6ad",
    "signature": "0xa1dedbf6eb47f1de86a31ce5e9672c452e35d53fbc380bb34a82dc4477f5aeea6313956ca19ed01e94b75aa162246dd60909ef95b3ecfcf3bf2be1eda5ed70281b",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}