Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'd827ff953b3ef97c46c9acd3ce04d00d0de384609cd06fe7bb576b40f74e4392' 
  AND token = '/WenBJfjRXX+ytE49d0ZxXDsSVW+wNWTFITqA32N2nA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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