{
  "manageEntity": {
    "action": "Update",
    "entityId": "814123074",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x72178ddc3f331d8bf2e43b9c6a0d5b6b40f0495d23ff31d47bbc260ee3eacfde",
    "signature": "0x9fd9b5d78111fb612fe4df33168cbf864ba1ea2fef292925494c32151684c4a730278cbe0241b0ccbc773fbfb3b81143bfed1b980bce56e4e8a576e097da75191c",
    "signer": "0x50CD2a9A1e58cE6e8fBCa14A1b0267A423813E18",
    "userId": "814123074"
  }
}