Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '374dd812f18a52c1ef8df4b8e657b061f3480d3fef1f2d584633d78a4661f01e' 
  AND token = '2ty0tgqnA4I2Ux3Ub6gWi91XSpVwGmaNxGxU5Rlxizo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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