{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0822777e6f79acb9763eb0c1a8fbb04fa18ee6f15d5e93c43926ee3438fe5f73",
    "signature": "0xb0e7e36a8175d8246891d2d210890c65e1c7b80944b185051b8c3b56248f12280807f88577242b82eb150d4d134ea794d39811148e24d8d3272b6adc871472c31c",
    "signer": "0xD16c31E6c8847E88ec9642f646AA5A3DC3509d8F",
    "userId": "634756955"
  }
}