{
  "manageEntity": {
    "action": "Update",
    "entityId": "295326110",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe77d9171cca38f3ee2a229237217cff063cf572cf73b0d685f72d12908fd5568",
    "signature": "0x8b5488dde8a5c161fe3cc2426df6a424fb79bf8c339c0c24e6ecee52d67c9e5953c44342a7b79d37d0cb24b3e9b823d20ce2da9e7cb468f0a52294db9660216c1b",
    "signer": "0xd0d23fA63D766D7766f499571670347EFbB20759",
    "userId": "295326110"
  }
}