{
  "manageEntity": {
    "action": "Update",
    "entityId": "237765871",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x67b472dc59cf9fc7e86fa8b41e6f76ba08f3b17729de128ae120f11c44c0ce3f",
    "signature": "0x316e0ebce5e7ccf2048feb0bf3229929585a592e1de471b4b6d3649f3a2dce8505235f682667cbbd46497257bcf19d167596832ef499d3726e289f7e825fa1411b",
    "signer": "0x8c716F932726b40bC9E1CEC18f2c93dc876da1Dc",
    "userId": "237765871"
  }
}