{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964899801",
    "entityType": "User",
    "nonce": "0x757e9a0c540e3edb6617fe605eaabfbba3ba105d08347e8168de6323eb7094cc",
    "signature": "0x1f2646d2d66ea038ecd4fe779305440b2356579cfeef316ecd6c9e7cabbfc5077ef3fd2deb80f4a5d2b473992ea22c0d4aaae01e1179197a79047f7a23b6e66f1b",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}