{
  "manageEntity": {
    "action": "Update",
    "entityId": "763506390",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x28e0cc0b92996415fbe17ab04359375f878e1261e6ab9b706e2074815d06836e",
    "signature": "0x27762e323caa32ae8a762d1839ed24eb7c9e5c7aec45831bf8eb598460d20223308cf6d1cd7831732c440b30ea9a6c9a81c7aefa8e40e77a8996107c911d6d1b1b",
    "signer": "0x003324132eBB89A9F4C856A175d40b3E4c4AAB39",
    "userId": "763506390"
  }
}