{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "895527427",
    "entityType": "User",
    "nonce": "0xa78f912d735fd3cc3aaadba0b2851939764e80baf7c4e4a62680db9c517dd719",
    "signature": "0x5dde99492c972d923c08fed791336914e4891b5960edce30c3485521e7422a416b902bf998fa5fb1ae20713b6cdbd0e727c2606618f745204178277453d39bed1c",
    "signer": "0xa3C91a44f620f0b95468bEC359f89edb95AE3cdC",
    "userId": "904405512"
  }
}