{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5a2f2cc55d3ed56631b5486fdd3942c6204f2bfb083e73b3c794e96f3ac4edc5",
    "signature": "0x6f92265ac5afe928ec497fb3b6033b86c81b66792da30307f273b6a6758b13dd2cc5b1fcdbc60c2376ef1523cc127fc1452126833e35548a9ce6c1bbb7d72aa61b",
    "signer": "0x39DF8Da64114fb410Cb3A4870a853B066E2Ab1dc",
    "userId": "913009444"
  }
}