{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "566075266",
    "entityType": "User",
    "nonce": "0x252a9c759457aa6b0137aa87d64518c59f73eb7e03c6bc142936b8e9fb777bc7",
    "signature": "0x1579a9a5be56402a08a20190cac7e4d634b6dc24cd5458f7580c0aa451f936121d18a1c46da3e61f6d66b0ab55271cfec51e54b3fdea9cc1b3456fc01feddf691c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}