{
  "manageEntity": {
    "action": "Update",
    "entityId": "339348617",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb7864493e3b2fe125e4ae66151691ecff8c87d057f5a37f85842a25b90ad3db1",
    "signature": "0x73d33ddab4421404da39573c8cabff8d5bbc58133ad56bcfe77fe1aa2c04df210ed43e354a1d1ee47bee645664e3dfb066cfe3d5153b7b30326d930e12fb7ded1b",
    "signer": "0xcfdE53E4231eEeE5b14bf2D49FD6f39B1D76E322",
    "userId": "339348617"
  }
}