{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x4ac9511fdae169efbab7d07de8da778219c103a8a90d2b0758d40872ffcc103e",
    "signature": "0xac2de6bf1d5489f205c2cfc671b7c4955298e5f763c571d416f96725340de79d2d56e8fde3e2d018c28a607a264eddce08a85139d9e998fb5f4ce9602a72d4fd1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}