{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301724",
    "entityType": "User",
    "nonce": "0x00532ed118c280bafd462040c8ff12bc4e2f0c01e35ad1a2c85ddde4a3214958",
    "signature": "0x56f72c7ac332c5ea1644e19121a2b0131a9b9cf40346b9083a6078fb1fc296be23f0ccd66024c63cf16653e91ec5b179ff65f12741698620f45803e5972af63b1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}