{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51319",
    "entityType": "User",
    "nonce": "0x01dfdee2f9d3a766cfe0c34fe94f52ab66ddb4669f77ab296ac86329b0988884",
    "signature": "0xa81b0002a69d9e6e6469df5077b4a939d762aba3ef319d2c394038e884dc9dfd683538dbd438cc9e0d81112e1ce8ab5d3f216788e8a70f59280a23de7af0631a1c",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}