{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5f2245ba4dab671f10b0579e510faaf7e0a4e135bebc1b1b592c0afa80177c8f",
    "signature": "0xff29bf1a506a5b44df78fa5f17624187b1c5fc892208b869e3d09667665b42c91be8bce7d297775d5b37afe416844315565526a5a042db5aa4c55180921001521c",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}