{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7645",
    "entityType": "User",
    "nonce": "0x1fac0c8e77d51f6350853ee6209695084c243859dbd85b83fe259aeeee7fbe39",
    "signature": "0x7aaf0d9ae36157c5b90d07a642364b1926aa2e1709df9159185025bf478bfcbf37d7fcd514afe57dcb1f5734bf150d97f54c99f1528089fc8e09dce722b25f761b",
    "signer": "0x044142FBd4AF7201d53A9BD1d822768a436d6314",
    "userId": "683311144"
  }
}