{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923035586",
    "entityType": "User",
    "nonce": "0x8fdb90e09b36e92df540e356e203cb9cd97bbc1b222e3e4ceb236500816038b9",
    "signature": "0xaf24576da843f8cf0f8ffbd0f20c82eb7be9c12e67cd3f2e0c72d83004d333dd1820e45f52c9741d89fcbe12b35e0572f74f3f6cca7d603919011f2bd35a20601c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}