{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x335085133c8628aa2c62f82d1acf27868c568fdecbe9f2af71f9a38e89aaebec",
    "signature": "0x12cec10b85c5f63cb3dcd34b66268267cdb8b8396fa7a59eea3e7887e2dc028e020e418af155009869f423a4a3ef3ae59b24e1ca1a9197f7f7aa045b95198ad01b",
    "signer": "0xb001DCb64Bf57b3EcC76C4Fe5AbfE2a8B084D6ba",
    "userId": "641557420"
  }
}