{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9e5ff64ce8a71781186a576e4473514e531095dd2566608d2490b266479ebcd8",
    "signature": "0xfbe5cc032c1b882ec19f7c1596edcb2c5065c8a28d2f561cfdd4e4a0ea4987571f6632aab7b4e5a21e9bb35d8490c2b75de0a823da3ef8aaef2633b1223f89791c",
    "signer": "0xf7Caf5598055faf8dd2F2deD9ef12c5210004EA1",
    "userId": "63177344"
  }
}