{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x7b66492ca69c17c2e7b43d011012d115bebb7344109d30e33b897dde2df6bc2a",
    "signature": "0xfd79ccfdf7fbb9e46b79493f0af31f82f3011f623834f31e0c7040c85ff1c8890c57eb3484784d4ac4f6a1380f3fbb452f154fb96cd6950510ecd43cc470dddf1b",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}