{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172",
    "entityType": "User",
    "nonce": "0x84197ef31f603f3f6ae997d40ad4eb2c5acf6e668130a29f0a6ed6e038c5b9f9",
    "signature": "0x6bef77edf105d96fc5838c71d5163462e8ed3899fe7959c26d0fdb73aac788af4fe58f766aff8b456f246739d42ba8ce6a3ed897783cfa19eed198cc30fd1f471c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}