Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1b07b42144fb7ea9a1a15c9940c378d690ecb9aa87de8c73aec02df5cb7cafd0' 
  AND token = 'maTNT3vOuk6zthb7n5q6fo8osjYkR4Kymc/LGEt/Wos=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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