Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1384e00dacfda984b158cb378f6cd6535ccf0aa041bb60d5eaf915e6a0c563be' 
  AND token = 'gCReWOSg7ZRA0CT4LQvRsyAJMYju2fE3KkluVJdlFws=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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