Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '741ba545bf8a89af94a12df7a371944e35ac6a661b1dd8116897abf3710f7d3e' 
  AND token = 'YdQ6bU0wprv854/c2S3yI/8QoSv7EHONVhnp/ec3RGc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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