{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "499031899",
    "entityType": "User",
    "nonce": "0xbe39f0263295618eb0119321102fb6c123c02fdba41543f11a66a6ac1f19262b",
    "signature": "0x67c17c2dcc5c4cca0598fb6dfda67d5eb9d63c6ca0674475034161b3989cea5414d8b55ba9ffbec97eea7712fbcc791905751a5d0bd78649757f077848bd535e1b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}