{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "212036",
    "entityType": "User",
    "nonce": "0xa7529daceb3a3947ee5aba29327f30e41309ddd3fe92be049ba3af8eed405988",
    "signature": "0xfcec1cd45d593f21939f7fecc10406a1fc80ab6d4afbd21536242d6083bf1a3d14e762f5d8bd12d2bbdf4b6d1a207211dee5a3908d5111fcea4954b593e7ad4e1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}