{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "487285804",
    "entityType": "User",
    "nonce": "0x464dbeca10f5593e2af146d8854433440183aeb13b6ce4ba7d6d148160adb92a",
    "signature": "0xf9d1a5530b58ae8dd16633b9f368af858f98e7ad512df2a2eefd820083d2dda347ee5d907d4fef09cea24053051078728b427fbfb1b9a8bce079bad865d7ed491c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}