Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f48022f37bb6b0d6ee694daa9f2e517ebb2dba812595c5d34abd068e04013b24' 
  AND token = '4BNfCRM5GZRlyko3ftb6ijMjm7h2QP6TwTHGeaq15ow=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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