{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171053",
    "entityType": "User",
    "nonce": "0x90ac76fd2eaebdd410dd6598718ee8a7305f4b371e23e0886d09eee9bf3a3116",
    "signature": "0x9138b60c4eabfe07566698e7ae0ef544e238103b5df140c5b18778b44820d1c859b954fc59e282ed240d241658e437ecbc43a9733f2d0140f4c2a8ca24426a761c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}