{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x33f9177e11486bdd3a8d725a6a2c688c68b4677db5325143a7fc4ee5898d14a9",
    "signature": "0xda4a3403c61ef7266d9ce9ad4d9c288ad7ffb6e6d9c804401dc989efac33361939850a919b96d53674ff9afe227a229a025a958f0428a4a1188735a9f47dfb5a1c",
    "signer": "0x4E16F4cBFf1225d4967740a3782b8F0939067117",
    "userId": "314250172"
  }
}