{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8b63ecf4e59f66e558ea3e5637e153f33ff3a7409dcac40358e21a70fe848ca0",
    "signature": "0x7c99a7e5dc728af8620e4c0b761533bf016aee06843f7defdc8255416d91981f648f4e72d17c824c1af9003aa2611afaa553bf210a2678c7f5ebd5b6524b65d61b",
    "signer": "0xb5902ac1A81A6B795210DdEB50e8F1FdaC9aed97",
    "userId": "842982090"
  }
}