{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66710",
    "entityType": "User",
    "nonce": "0x681451fe5d4728f8b5d46eacd641dfc706f6399bdd0742bba764eb8b6b43e8c5",
    "signature": "0xfcb613602bd6cabd56e2a55473ea260a56f3e0e5ad9b70260664794d1044a8916d1419d4ee0a24fecb6e03a42147275c8d1560b1a3d069cd1630858048bb8a051b",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}