{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357249",
    "entityType": "User",
    "nonce": "0x0d28695f06c1cd7dfd28b73735fe357d904e908c1b01fccfdfa149e1c6934e70",
    "signature": "0xf68199ecb809734d12eb268948fdb345e9733725e47fb009ddaeacf629474b7118b82475e5fcc1f65ab555be3e8456510a156e2c93ee898850bcb3a70ff8f9471b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}