{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0x20b98c87c483970ae85335eaee4e92e2e3fa3c71820953e3bcfbd75e4c22c4a6",
    "signature": "0x8774b97a31e7433eedd0799f0d431093d0634ca3d1444b747314ba229257d19052a66fa7b2e5ee7d5e7d646e1ba40b824ae07a6511295824315775ec885886ea1b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}