{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x591534e8e2608f0323b277f3422423bf74ca90da111f60b297c5c519332c32b8",
    "signature": "0xf3608156ca0a6869c2a62fc21febadff79021fad70c948104a70b82691ef63c4780da671ea0ae9b5cca2cbb5def4a7c7be8a7c649f6e22f37bfed0d1fbae01a61c",
    "signer": "0x16BE3cc7Ee03C75AD10a94fb7234B045D351825c",
    "userId": "66529124"
  }
}