{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0x5a1b41fd6bbf94321dfca630428f6eebc2bfcc394ce15742e74ef8c54e737cac",
    "signature": "0x13b6e512476837328099372296687bcfa7061e86a0a037582588c06a434796c02a4255baaeff0b619f17a55c20cc5e6d3d0114b23a20b8a11fa37d89504e623a1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}