{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49485",
    "entityType": "User",
    "nonce": "0x711487d7ac9219a9135751683c3728f6beceb1cbc85b38ab7705ea8a18296ec7",
    "signature": "0x4e43b0beb4487aa4e6772b174f5987aba8222476a276c75dbc6126575eb16e201e4768c64e589c02d25d7a15bf09c506d6990bba99f2afb710e2774cf2b6ede71b",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}