{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15397",
    "entityType": "User",
    "nonce": "0xa6ff5824b6eaebca4411fd3cedfb6eec40dc19afe826b4d27ffa4e28d9bfa62c",
    "signature": "0x70151e2c6c19fce903f43623c8f08cb0435f972f7a9f42691dfe616cf8c4c5e83d08185b46f585a191218620124083093ead505ddfbf0c34d93ea40c2f655c041b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}