{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333072",
    "entityType": "User",
    "nonce": "0x14943ec19abc06c6201006820165ef2e3b982bfe3d6dc638685b8053334992a5",
    "signature": "0x37419d480be537cb1281ac4a7590f8043cdc3938a052654a3030490d97ecf29f65117f70a299c980b9393b548287bdbe0e85a79ac2c592abc2a23a6d0e8408141b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}