Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '25252c6f2e0ac02ed556481c8a914c6bbe2e526eda415932eec05d225c4db69e' 
  AND token = 'NvXrgz/vfPcRsmzlYeh2DsI/EdujcFOw4kC3BGp7p/M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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