{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348321",
    "entityType": "User",
    "nonce": "0x95195ededea8c0d6197e9b85033bd99b11dc240301edad665f401d5370c67c76",
    "signature": "0xb38a3aa4e2fc6f32c518be6f52153dfade90f61544c7cfa610cb2f338599d87e2b9d2c0d0c4d42aa1c2f7eeb0c595f9e3ac1b27f76e05e463d8e18c04d34aa9f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}