Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'efe7e6178f3a8fe30a1567b441c048ad5cedf891689001c3a656fed303065173' 
  AND token = 'vgN8YNaI2YqxnfV2J05Vr9rmAxODA/Z+WmKNOMP7/7I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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