{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x5a025e70b592d954dee620319afc79f86df32b8192eda3c2a60d9abebf73a275",
    "signature": "0xd603dca166c33ad597d57b9b961505c04516fd6806c372b79ce4d0f5204b5d311de9a02b53acc57277e1593dc7ef9965f2d037e2412296f3ac831488d78e76f21c",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}