{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x34d2dbb49498793e2c82d9109528583d796ba9896bc7fe8d9c92b6cc23460a2d",
    "signature": "0x3c261550904c12391c7651f0be81a53f8e973ee31cbdb32f4643699000463ab45b893b97020a6a27d109652c3242030b8fe5255bcfd445ee4003b6ae2ea4dcb81c",
    "signer": "0x75d782C5a68f76DfA69c426479B6ad14383D035f",
    "userId": "328056745"
  }
}