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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd444008eb79c0eb7a3508b1cc39d2e50b163679e9d1701802336896253a810a4' 
  AND token = 'KUjPjXMj6e7d+/01uA1MRr2wQ3rZ06kjwQdDrEKRZTQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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