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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '92d0632d12694c04097e180881254a6455de4a516cbc300a7f79fd6a8cbc6a92' 
  AND token = 'NAxHMpkbWnxtAJnq14gJYIpENJP1TdYfWncg8GhNx5c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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