Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'aed0a1b1e899d2d94c4e4d90a5ab94b79d29f737ffe32749a2350eb35d6076b6' 
  AND token = 'NSnmZSGNV3mK2R7z3KCXzxu70SizXcAIYCNXK6iJHLw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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