{
  "manageEntity": {
    "action": "Update",
    "entityId": "129733318",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1735929b1e1926cb14c5151b19a3761bebcaf8339819d3203a2da1392ecd3150",
    "signature": "0x8a155fe1f30dbf153ed8447a6d091660b1cdb488007ff1f2aa512aa3f67eaf260b1820bcdbb48d216dd62f09b0c25cf3c03a35d6ef071b798900af6ef76e1fb11b",
    "signer": "0xC24bF1b9beef42229F5912045FCb2DBccb0C68FA",
    "userId": "129733318"
  }
}