{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x718a71dfbb8925946298f0c8e67b373a5e6b9f463f043859451b0ee6d10ec962",
    "signature": "0xa64b0b492f107e1b7a8e232a1e80506073e4f154f6aa33b6f407b5d41a4f2bc60ca8fc76a44fdc39778535905161388260141b2a0ee9aaf7eb49fe1dd914671e1b",
    "signer": "0x1722Bd41fF2807f51cdFd5182D3950D3f52B6090",
    "userId": "872526962"
  }
}