Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '23114e5debb358024cbe71c47f24dddcd0b239c1f5c448330c74e59e2fc6950c' 
  AND token = 'ywM7m2LBO2IO9laHNuvYpA6TcuG5w+Pa0gLAimX4lXU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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