{
  "manageEntity": {
    "action": "Update",
    "entityId": "879689249",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xff6327eb39be0c8818e779e7fb9f034fbc74b585f2aa8641c65a03c18b60a040",
    "signature": "0xffe21188300ba270e22ea3213e017f2b6c3957cf6f32b6b3b0cb6871462e174935c1bdcd96ef6163d61f3fcc01e3954572c6cc1a1fb2fde5657ef4a5d8e1da201c",
    "signer": "0x9D25CA757001F2f1F62f38c465aa70E0f89Ea39D",
    "userId": "879689249"
  }
}