{
  "manageEntity": {
    "action": "Update",
    "entityId": "465161300",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4ee4b153b352af7e73d082490240ccabe4525e3e181adf974cb12ea68733407a",
    "signature": "0x9e11ca3a7a5968a7b683e10a248474f0e062b4f6ab925c00c92f39e61804f0c36b84948f8a1adee6d94f1b6c342a46c83b7e47d1e65cdb5337e3f636fa83bc481c",
    "signer": "0xfcc1ebd834F0a4e20443BB7a77c345084d78bd3A",
    "userId": "465161300"
  }
}