{
  "manageEntity": {
    "action": "Update",
    "entityId": "87628189",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd8e3c8ed305e7191d498832d8007e03cd52738eb95fc405c66ad494edca9b563",
    "signature": "0x184b3b29d248ee2c8a33278e0fc7eaee8e644e63ab32b4ac9fedbfd2edc229707bbe41b18f3699eb829687150499fbee60f0050adfd0a3d5276ca3aab5a778bf1b",
    "signer": "0x3029f927E4a80DE690331AE2bF505dfe7848F9Dc",
    "userId": "87628189"
  }
}