{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "919360268",
    "entityType": "User",
    "nonce": "0x866451a7288711f2a4d8b808fff847089dd603156a556e0beaee5d4b82f72bae",
    "signature": "0x772c33fcf23897d261ac3cff9a351b48e24f42488334fe1b557b4ebe9af4f8a06c618900a76fa01a26b1e70e9bbeaeb9f77dbc6341c2675986dbe9d4b99b3d371c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}