Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c1f7385850f2a7895c1ec13ec1026096b0b8176f16239c2e4b323f6235974f35' 
  AND token = '0Aml83tJ+cJ22ZQopMAqJWIuv6Zn9P17STofyDMQ0JE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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