{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "536634479",
    "entityType": "User",
    "nonce": "0xdc5a1377d7661dcdffb5f7046548e56bc028a43e2c89ccf0be1c7383efacf8d3",
    "signature": "0xa23c3962af81815905208e7c183d55011cda4ac506be6f1dadc18ecf927e12717a1f49724ad7362c7e0b05bff1bb876686380f971fa83214dc612ce14e5ccef71c",
    "signer": "0xc28F39d473d5C4cacc612630A8798a119D1Bb506",
    "userId": "901788935"
  }
}