{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x6ce8846ff5f3cbecd4549bedc7e91f18a8d0a4f0b11d8e1916fda4d5839f7f5b",
    "signature": "0x5feaea4bc06bc0e35e1fe8b5b7f9daf2f0c6980b7accf39f0b8a7c1fe7896caf094bb813868e5febd4b64bbca48eb60214b0b4bfd7deffad1d6b5c123b82b1531b",
    "signer": "0x61759FD9d69b6C29FE84fc39eaB6C50Cf7dCd8FC",
    "userId": "366953361"
  }
}