{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x72f5be44d93e4e4e15f7848ee568ca3ab689ba5aa1858f24b3735618af875707",
    "signature": "0xb3a3580135a3d471ff26c0933dd37295a0a4fda9261aa13d22e192911a2a55151d145d3922d0e6fddc60a0af220861828634f034babd30ca9b59d1d6e693fb181c",
    "signer": "0x063914dBEA89B25900ee50A22fd886126FCbCFdE",
    "userId": "773349352"
  }
}