Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '63fe71679e01be155ef9d6cf557d62c26090f6f5c769b15087b47a40cc9d64e4' 
  AND token = 'vX3i1097cO55O3Mfo4awTLswR9KevrpYiQcHSwFzwco=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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