{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90454",
    "entityType": "User",
    "nonce": "0x4a87cc00a2f46db1f87288d760d5051b8f4baaebcd12a24e7e8b85b7aa332358",
    "signature": "0x638792a9ced48acc58aefc8b0da485a67e8c04fc1022f8e962d03101b39edd5f33e44a7051e243499ce16863ccbcd74a1670c8ecd711ab1a1cf3de12a4bc1f5a1c",
    "signer": "0xC3B8Db4fD6b5608e625Fc02e4e8B7a274B7dB687",
    "userId": "110486155"
  }
}