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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'cf963ca5214c718a5d9c6a6acc0d9a324f6ed06c50438bbdb7fa61cd13f4303a' 
  AND token = '5Mp2VWvipQlkWPIaZTsatGOHPgj8EhomkIsf8e/JR6M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}