{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "60903",
    "entityType": "User",
    "nonce": "0xdba7ef81b487350a2b659782f762f041ba0bcc0e84567defc445d21c4cd5a21a",
    "signature": "0x13d87942af6bf405f10e9705b166bed9466e347e4301befea9797abc6720d44c7bca2de399f2586a0cbd8d3aad6354330c08e16ba9a737e024c655368d9ea9541b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}