{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x1c71d8a7a0e2756abb1f9e0c1fd591162512e46d7d07e7b421b16377190706ba",
    "signature": "0xe3565488861d8cfa6cd9a81c748f6d0cd3aac698a99e56462a6e1cbab315345d7a336f80c4f01f402f5f353d4043ec22273a8fdb237830254ac0a796815b09b71c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}