{
  "manageEntity": {
    "action": "Update",
    "entityId": "385624413",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x13037d08585a662b81f4a9a4c5c3a47c77db4d63bbc702d9006ea87d3936cb93",
    "signature": "0x389adad5e0c3adc0a93e5f99bce3b6d9379ba2a2fc0263be5ff3351005a31ce45ff9782aaa5d3ee2c0b7124ba726d2309d851eac49e7e6c56b5d443171a725c51c",
    "signer": "0xF69c663aaF9601589703d19F817ad286Cc340Ff5",
    "userId": "385624413"
  }
}