{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x452dbbc1957e50b942e3771fa83718a3c2e941ad010c820bb2481e972e6d7003",
    "signature": "0x62e235927fca10dde652ea32b217c61b40203571fe1a28bbcc9217c36327096e156af72b1e132248203c9618b5fe0070c733984e3d8ab539436b33031e0627d61c",
    "signer": "0xede5a1527271aFb900714b8Faf61EE0714131C19",
    "userId": "329941643"
  }
}