{
  "manageEntity": {
    "action": "Update",
    "entityId": "406716751",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x62af7c3a649fe89e2358ab3da89fc3e27b3d1720b30397366dd9800bc6d5aa07",
    "signature": "0x75e331e667ac1fa4b5585dfca9549f52799fd6d85a4745223fd3f44039abb802598c0fcba9bf768d4fcf9e8fc545e14f9a13f9449c9a327e1db10be05805e4971c",
    "signer": "0x31eba27Ca105bABB3B8590b9A71b07C6d1e7c747",
    "userId": "406716751"
  }
}