{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x23624c885322545d64a5c18b369065ef78a90dd0d71f711765ad4a74f7a4af57",
    "signature": "0x186756b8420c2261e8fa65e0c13dc050ca9e81ad282fa598f089b596205f697b52c7d1b885a3e1ef78ec6e45c5912b65f6edcdbfc7902b2e29655633ea7d23ed1b",
    "signer": "0xfc7064Ac6bb1bFe42B00EEE14298d29bEC53611F",
    "userId": "303606320"
  }
}