{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2aa5e2e8bd831b3544f4d917273f392cf2a2cc536bff94bdead424560b632ee1",
    "signature": "0x6c64f43dcca8643c1caffd93fecf9855bc577352c6e3709fb3ae0b3bab167e821c6a5e9de04e47268b9d7cd78a260800bca27252846b5c53e6865c8b3e8e88071c",
    "signer": "0x9D3C8F5D16bd0737A82959859f0cd860Fc911A27",
    "userId": "680518195"
  }
}