Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '49180d83d465ebcc59d05bd06cdd26ea5c00c95ecb5baad0778a1d1e8d3aa2e2' 
  AND token = '4+SVQBjEkay10p0cByxvzO+rCZi1vcJd54AtyTWWHx4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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