Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0172fc13ef868106defab4b94c2f9a75613e05a6f8453177078becc2acb278c6' 
  AND token = 'RwSQ6Li+a+CRlNOQgw4XvVEYoCgf0FHm4o3n0taqNIw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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