{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaf8c405948213b84c397bdc86bef1210e0fc3aa2cd48c4f7a88629d5cadd52ea",
    "signature": "0x97cb3c9671a3fc58370e9a6429e0289bb884ee58a52d6e7a59fda49f4396072679aaa3c7631cfb261114f39afbf742373a663433d507e7ccde089a39edc9ace01b",
    "signer": "0xfbC3135Af5f4f47cB81853ce055c0BB30a24E4F3",
    "userId": "712658154"
  }
}