{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd7eabd8c57f4b764030ae5f82b7249d83b238f84d0b87a7b4e41c076473f47c6",
    "signature": "0x3e7c833f84e6bdeac14837536b58e12345cae54541f5aa853572a264f267332e492e1700ef46cfa201d74f167cd77e42dab6797c3b7fe93446613b49e9e777df1c",
    "signer": "0x79B9F0286e1b3d507AB1162730A38E4B681cCe12",
    "userId": "770860270"
  }
}