{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124122",
    "entityType": "User",
    "nonce": "0xa533aefc5c7b920e74e4067a7e09b85135745c8914c29c259e29e8b46d8c8098",
    "signature": "0x30e50738f45ebb125b88b83106cd8ffbc0f04258eed06e5117d266b97887de03415228d7e37b3580e8117eea676765120b40e0ebd49e615e46d435adc7d647291b",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}