{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0bbfc61a9b98cc901fae0be9008fd116cf5cc055be6dd600a5a91714daadc677",
    "signature": "0xb38ddf0520e3d2ab70a4183dcbb5f980deb26baed9cf17c298bf41033893d7873567e068b580a25afaa7a60f18a2fee122d891e335163953e57794d0a999de681c",
    "signer": "0x5c8AfDEAc05FbB157876C04BF36E221C2318278E",
    "userId": "593502567"
  }
}