{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x484f1c2fafe31406b8e0b0d201234fce0819f8d8e18b5993cdd8ff01c2983183",
    "signature": "0x915c3d9480f733370713b6b08ccd64eccb52cbfcc55bce45e2340f69a105894d1ee01663f109446899b992d916d0db1a80da6bae958d3f6daca0172e851390671c",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}