Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'bdfd0d74477f311d060ebec15c111cb5861c4ccde154d0046176d6645f0d02d3' 
  AND token = '/5N4YPJeEEYf4bDiLmbQJCNw+5039Ll0yHeSb3Nbfj4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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