{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "676581728",
    "entityType": "User",
    "nonce": "0x33cf3f52e30cde08c5692f72c0abdf11599d6f8ea2d6909384942823ee12e4e1",
    "signature": "0xafc439cbd569a5537e1e49c4c41b93390f8204573596fd455ea13386d723984d31cc9508788742ab6aef3987837950862fc2187b3238dff4c9f67ea229d53a821b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}