{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "344861033",
    "entityType": "User",
    "nonce": "0x033cd571260cf7d5ddcae6f18640560d53d49f57f381d730be7e37648cacc4c5",
    "signature": "0xd8b4c82edc3a6f30dcf72bf56b67a15b2c42c5f8397f45f2f90c44ab2e8d5d534e7b8e85e3aa2ff43caac43fdd111878effb9bc0ff7bd71586eb8a89160edf191c",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}