Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '89ad6c52f0c303b5560912ad8313ec1f4e57ab7a1f1c20ba1fdd384255a68d0e' 
  AND token = 'v0DAR7J6mKPgB3iHg3zIKu0SIrKP0W/wi2wJGxk2wAE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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