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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2023dea3ec8cc200f7e48e2fdeffacbe495ca4041bf7bbc5be4dc4dad502478f' 
  AND token = 'WepGP3CeycsJQXPWBwcbNzidmhLXZXIEJHiIrSeho64=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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