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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'aa4cfe28055df2e258d3f1c5df04f32f885304fcadeb0f242a60180c2e61b306' 
  AND token = 'H2ll66+EkUkqKT6cg8Nrsq5oMMkh7ab6DeNea3d8ens=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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