{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0x58f55f5ef4cb4d64ceaac1b145efb2e2881c3eedac9081d7477f5f3b55d2d6f2",
    "signature": "0xa977e4c9eb211678424ecd7b9527e4e185ebd4fa2670d353e6f110e87a0f061c77890c3f855f1736bb68e8dbe7078230927de09cc2156c4b717a7d50d5f2fe6c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}