Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '62622ac95bc5851491694caec0af8cc6a9ca3f9c7230c643732fe310c555ae85' 
  AND token = '0bz8B/sQXmVpn+EGYY4QDYJ0f0T12plsPknL4fg9dbM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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