{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593028395",
    "entityType": "User",
    "nonce": "0xe6479d2639210ac6829d1b23bb057f86432938b449c9091b50f690633f1171ad",
    "signature": "0xa4d90361aa694d420367b9a36223d80a24de1276c3584d4da926faef87a68550046165117f8a85c91802bf731b046dab200c22a584396368a315231f75cc4ac41c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}