Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2590550233df40167378c011a292941af43436a13c286cec27ce01326bf7eb2c' 
  AND token = 'wbq+QBoNdf/BOpR4sPf6H1+38bRFTozdNDIR18AXJYU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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