{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3d3cbdac72434c42aaffa34859be9d45b1fa88895e0704074da768668e976199",
    "signature": "0x180fda4671b6417519fda69138187c2c5673b9460af61c8bebc861f477eb391e5d06ec4a07a8c2972e9d805e0fe064636b74e0beb0e714009c3ad435c5359c2b1b",
    "signer": "0x84cC6c6E58710325900E2F6a270f514802521BaA",
    "userId": "143191677"
  }
}