{
  "manageEntity": {
    "action": "Update",
    "entityId": "755651302",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x64be61d34c638f9edafafbbd2c89f8383a82624a6c8ba1d1d8c2480c0d8e870f",
    "signature": "0xf10435739e6d230df4c0c30927770f23a638b2543b22758e62647f4457e1de471d13e1468d911b3d9c915e2d95c731e434724d354cecc8369af25ae9bc2ac90c1c",
    "signer": "0x9cB833243e283F89D7515e148f9C1bD6E1B98581",
    "userId": "755651302"
  }
}