{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x700728013a6944524f12e712cd7dc8860a7e70d2df6ce8a828860416b4fb1664",
    "signature": "0x25ca0d6e9d1713a2a6a65ec1104f358688424b4da0b0ab10142f2237bde3cd5754765989b5989e436e2e4d8bee51ac4b75861c3ac1f4bc2910c4efb588ebfe211c",
    "signer": "0x4e45ff770C7F7577489A0c787D47cB6777538725",
    "userId": "110070561"
  }
}