{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x691b6163ab81b1ff6a0d34bfa542a298416bd5113ae940f701ff8b9db9de3e70",
    "signature": "0x76308392cd12fb35677a00fd680aeb9477a8a6b0b95a172645607168970547785b727705053650d71384855abd0c7d12b8ca13fad2f959d9832b830100e0f6791b",
    "signer": "0x809Db232a6131f46553BA571FB17bFA2cc58aeE9",
    "userId": "351386054"
  }
}