{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x62e00e87d52f848aca2e331c23bb9aa873c72e0a4132de56ab97ba284938f743",
    "signature": "0xd9c1f68992395f5377f4ede5c0ba6b2649b3b6c882599486aac0eb7764374db5143a0e0a3b8035a3c841898c4f05f2763dc42794efed9dc3c479fc0eac8656f61b",
    "signer": "0x9587E54fD9e50A63472e59359F08eFD8F011cc70",
    "userId": "583511607"
  }
}