{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdcc54f1f048576856be1215bc7fb4947a1d553f5f8f317f143665ddb001be257",
    "signature": "0x7ee09307dec0a5c56e8a1f3b89c14688908b8490bd9f77ec37388e66c7feb416572e13379e95d3ac8944c65533fab1648c1d1264bbd35e841b4d6449b68b05b21c",
    "signer": "0x29d0C785abd77c22c6a474D3c1873C6e92877619",
    "userId": "388884075"
  }
}