Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2da162e6668c2de69c3b47fde13f8c07c04bfdaa214095dd183333911a060e78' 
  AND token = 'eUUu18VylWwIWgG9/mgrb96LXiPEULoUOFBJNg2Cyck=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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