Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '422525044f1da23fbd125f0dde0e1e3e78e4bf50d354e6bec72c3d891ca0047c' 
  AND token = '5JdkV9B9Yn6TFxeCBx/OjmVKkV7yq7VcRIR0L3IpunE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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