{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x35f743c4ec0c162f010f45e974efb663e7855decf847e81cc348a697d35756c3",
    "signature": "0xac31313c580ce3a28079ee997cb5a43cfbc365d8c21f3d445c4669208c147c7f32c564214783a93b3c5b65df09c610b2d6217e3536235bfc9853fb288c626bdd1c",
    "signer": "0x7F7038819176d30f877ED9a42633Ef96354eB386",
    "userId": "678533360"
  }
}