{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "628866473",
    "entityType": "User",
    "nonce": "0x65e05bcc5a07745b61045b9fd038484f81e6fe878dafe7a03faf95397d711297",
    "signature": "0xbede2a78b9277b8840ee3e3d12696a6ed29abc65a561e285b675e05ec6fb01ca612c55756547abc96281e4bf4e5c450abc63579afb5be57f4cca50e74ce8f6de1b",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}