Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e2ac07287bb8fed03952df315fbb2d3d7634765ab61091fe35737fbbf26ab874' 
  AND token = 'oSxq0bwdBIcorwix7WTkj5xo96+iJW7Fr/C9nOCQ2J0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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