Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f66c315bc9735a8cce77ca14942119f3f8582885279d23c1cc54b2135c374c51' 
  AND token = 'oLi4E5xnjWe4RepHNs/KB030scmkMA7Hwf5ScFhllAk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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