Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1699782f4629851e5082dc94dc336fd21dbbe1ab45e88e397eb98efad86ea9c2' 
  AND token = 'TrE256tNSQBq66gbAEnKQ0nRLRwGnvvXcxabbjJgIUk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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