{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x841bb0ee2e848b669f00761cf0daaa4bac76e70f913e6e4ba1c7fdf5c780288d",
    "signature": "0xee92bdaa69683f023c500b524f5af680a928e6136599b3207753452beb3ad9ef52211d59bf5fb51d39ea17dce08f5dbd94a450bf57ade14bf113bc6c06a0579b1c",
    "signer": "0x972fB2aC0F87455abaD19aC25234dff9A3227235",
    "userId": "937331705"
  }
}