Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dd1ce97ea1253935a1ca2248d9ea9dab9d207a103a692c3e3e1050537a1d598d' 
  AND token = '0TYqZy4BQkaUV4J0BslERzGCUXie2t3y2xz/w9C0ji4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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