{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb7bc4a0236ba73c9f05991c000872f80dbf3ef9bf2d4be3a55cded697fc461c6",
    "signature": "0xf1acd2adadc063f7fb2116251d4179cce3c91505f386a57a7e8f7e5c064a107a11e0bc97f025e62b6df0e21c1d087e22160d7e20c0e23e9206c73ec80122a52c1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}