{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "492842875",
    "entityType": "User",
    "nonce": "0x4270953b86bad2871b4c493b7705bf5afc4f506c2911843d3e1274b998465176",
    "signature": "0x447129cf5e2af30817a42cc72da494724fdcc1e20d8cc86ab3b8f2ecd3d98726126b068defd586ee7b59e48eba3c2ff5b16a8c76a945e4d7543930fd63034f171c",
    "signer": "0x4684b2B16f17a5b9FFF895d163672B3DA8837A69",
    "userId": "390136924"
  }
}