{
  "manageEntity": {
    "action": "Update",
    "entityId": "56708291",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xaba5173abe2b415370cc235a75bb708cc5ae04106850bc1fb2889623feb6a7eb",
    "signature": "0x2fa00207c7196b21d27870969dfcc9e6882f8ce1313e07909ab2d57500a40301600af4ad8732b546b76d1bea79b08a7152b1c225389f928657c26d86d9b5e9fe1b",
    "signer": "0x3A142A3A7eD25C0818EFB5ebDf47d13B6D3C8940",
    "userId": "56708291"
  }
}