{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41340",
    "entityType": "User",
    "nonce": "0x563f2b12133f2d89d6f55409c76b6cbaa2ed93bb94c74cdade302201b5ee5803",
    "signature": "0x90078163a78d46d6a2abc19b513369168134da13d6a7edd60be2c9f3c497256f70dd056a4f82b8ae68e0ad37db66ec618ac9b518c6641a9f1fe4bf9cb86e269e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}