{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "288058",
    "entityType": "User",
    "nonce": "0x675657beee8aa28928ac993806a8d0604c1231768dbea50e7ae8469326978167",
    "signature": "0x41dfd1f4be6e4524b54c364aabe814ed579a86211cf5e970795fac06ac2b644465d62b77b052194d70586061cd8f5b1014bacba875dfded2f09ca8c4e945eaac1b",
    "signer": "0xd9bA17330fFb3Ea1356C5eC14971D9e1f2cb5200",
    "userId": "337125448"
  }
}