Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bbbec00ae7b30057c04c52573421e48e836b7fbc583b2c21d1b55d538b8b7650' 
  AND token = 'yke+6JzFkrzgScnz3s5Bnc0V1rmfvDPOcZvqDboGnoc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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