Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bab266f579c002094e1a03d7ce2b2daf007231ccaa2695bca186ce7bd1910876' 
  AND token = 'E2R2zmyioDd6IiWqWZaQ0y1v+hzGBANU65LmgXjzgPQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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