{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "615483876",
    "entityType": "User",
    "nonce": "0xa6d4a6965310c56fd14c444307eb3c199bea4dca888222f61c39f3907c1ed746",
    "signature": "0x516785c91bd09b5c117d113448259b49edfe01f0a421bffee3e82b2e679a883f4b9d56c43852d2ec838834e3d7f54d39cfa42731d622967bca5cdbb9a7cddb7c1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}