{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27447",
    "entityType": "User",
    "nonce": "0x9c976167b381f7e00531ad6a741e81cd38bf9a9f42023038e5baaf59cb38f169",
    "signature": "0x0cf0bbdb0e2b5be0800f10ba4d3b7e68fa6d1b969c8c9f2ed332264820985a6a6d4a170b925a8d3875b28411fc30701ec3b0a868c94b36b0e53944010d14d9321c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}