{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "875378857",
    "entityType": "User",
    "nonce": "0xd0ee4e8004129217fa117891186119edba96bd37690e6780703d65e6f5e3d74b",
    "signature": "0xa51e3fa1685aa865fcf58a18e996b84db760ed709d5219cfcdc6e8da3b55bbb7296ad6c66c0f88a15c1514f0ec7448a0cb614f171b8fec9d09ca013d0dae16291c",
    "signer": "0xd85E4A094e4C057572A9D525C9737051A17ab609",
    "userId": "696716320"
  }
}