{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0x2cb3e8803ed483afb875479cdb1c36f531e14b32c00e3117e02f2951c67707fb",
    "signature": "0x20c6ab9fc26f54b061b335030c9ad76f88e33a3e7765328afe399497282b040e3871778f39280d6df39e9c5413a9633ee38faa335ba0027f831eb8c8dde0c30c1b",
    "signer": "0x3C6F0E09eaF5eB463F767c9d5CD0cDA328e1492D",
    "userId": "586117523"
  }
}