{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x513a8cc5dee671ac6552fd523285712efd3192041cab0109891524f4a72817bd",
    "signature": "0xcfcad6d67e1faada1ae4383f965514a2e1719030ed96ce671656bd62806a29940d2147759bf4262c3f5b6474f579c9d118f006ac731314e2228a50add76dcf401b",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}