{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x6706914630a233e0bb583ab07efd072a6ecd33c665b45e5dbd98c2d0df830999",
    "signature": "0x195aff5700aa178c9d255bd80c86de1c9282a02fd90cb1ae45db7ec0f2496d69517635ff1a4362f6b7cb02995ba22b7a0d30a75526e8b9a2ad10a0c68c240cde1c",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}