{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943748539",
    "entityType": "User",
    "nonce": "0xba91cadaccc4f5a36772e081118897bdffc6a8bb8a0e3692fcfc3da0315303fc",
    "signature": "0x1f9059efbc2dcc55509a4c039ae76d006e203f7814aaacf4be0b195299f726126230fe37b8e8dcf92909993750d9a05e653e9030da85f60b5d5a151d861eaa831c",
    "signer": "0x6B239e9B75f27b519de7Bad3a26a0b7d30e32D3f",
    "userId": "311257477"
  }
}