{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xacd2bd860d7371ea25a0da63c4d7e3d0f00217b0d2fb5de9daf91f2eb3bfdc05",
    "signature": "0xb2e26f485ac8100bca3e78ec16745eb65ccee3c7cc6f8f54c57316c151e6428a19d063257f09f5c363d65ba6ab7516ad0149630a4ae45eab8bcbbccfcd68f7ce1c",
    "signer": "0xBf31D832CcAB3e36e219834170e72821d15c8C14",
    "userId": "745392701"
  }
}