{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xde30edc38dfacfbab7f1394424c434d9628ee7beb7016c69c4d142bd49693ebd",
    "signature": "0x52e8c26c6e1ddedb990c84bafea51522814b876df637c94ea1bfea2e3bfa80d757ba2bf0b20142cc56f00bb6e979941ad177b63ff9bfc792f64de545ed4855a81b",
    "signer": "0xe5642E3320533Ec577E142dAb08394dd36b1a67C",
    "userId": "978309094"
  }
}