Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '549d4875105928654c430aef3ffcf9e1b323f4582e5409e87033778ac45de9dc' 
  AND token = 'eMCe/L23W99LtGcXmRp6WoaPmGS/pMwVC3R0xuEJxgE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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