{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4384",
    "entityType": "User",
    "nonce": "0x5ba8d04009ec5ad90447fe3538f227e414a497ae26067e449a0ee83961d3d5c4",
    "signature": "0xa53946607effc869d6a8818bb6cd1bcf692d1f77be56f973260c8d2fdd76d4b636ff485d60d2913218433889507743033f6c15eaae27158af02568a3f9ff95581b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}