{
  "manageEntity": {
    "action": "Update",
    "entityId": "998066284",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4d5d056f6caa15d2052b56cb5243e0be26d6f1e26f0e8a205b44876ec28b02b3",
    "signature": "0x2795b2cceb7a54014e618bd4bb73357d97ce86d9d366230bea6b8f9d79e05d834ddcfa05989afa46fa0f00e774ed6f95c6ec83232af45bec7735d27e6a8127fa1c",
    "signer": "0x23aef531d0C37b2f8661Cf99163E20a20EA0484d",
    "userId": "998066284"
  }
}