{
  "manageEntity": {
    "action": "Update",
    "entityId": "834540087",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x31b5541ff1771e3ff195c7ab1f1f931947a7c09bcbd4e4d905901e5519e36da7",
    "signature": "0x05b082274d03b73ff2ac30ab822767069032762587ee774e1079521d1007f1673dca5c7fdf49dd0b98aa723ff33fe0728065a48a56895603eaa3f4f232da2b841b",
    "signer": "0xF0CaA5581Af6ee80150b5aA4643d1069EC176dB6",
    "userId": "834540087"
  }
}