{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "423",
    "entityType": "User",
    "nonce": "0xa3e8df4c4154ba713b231751b3f199f2a0e061c4ebc5587c2bf53798e09aeab1",
    "signature": "0x82a93e273eee535d4539a32c3055bcfc7bacde045f1fd6fc7ad7e7c861a477a32eb70c31816f453d18fdf4081dbc82472c415fe964829b53f85124b2b8a33ff01c",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}