Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd00d72746c5985980b75d2f92931bd1d67a104b7ecf7ec5c9258f9cb4ecc7f1b' 
  AND token = '1srrLpg/Ee7Jdn3JWUsXG2LpJrT6yrpdQEdK5SU5RDI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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