{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "536740013",
    "entityType": "User",
    "nonce": "0x4dd311b6d26ced0fa96cd601e43b9ec02525e9f6b670f7b7b2e51b275f0d5476",
    "signature": "0xe2fcff20ab8b1c5b0238a1fdd713da14247edf3be440b25dec923c2fd84b82f96e5ba99889dd2ffbd348382ffea6fc98a8002352b0a0a02091245f62006373ed1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}