{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5680",
    "entityType": "User",
    "nonce": "0x9fda350106e77053af0b430f7e08ca91ec2463c0be98c3cfc22b9e5333a061d0",
    "signature": "0xfc800b9e4e2bf5985428c60d3dee86f8996ba0ade05840f3c34b5c6fadea99ae59930fa5b713bcaf1033eb5106d632417a5f58119a2b05d6a2bccdc1ccb1e1f71c",
    "signer": "0xcF5801beAC04340637889094F04324eB09bf4844",
    "userId": "976132619"
  }
}