Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2e97ba0e54e5235b0c061fee09c0cb22eb6f1c5eb8deb347b51386c39f0be886' 
  AND token = 'zYMzgDwSIloAKLjHixbv4Z2IuE6h5u2rwjb/cJeYPkc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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