{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf1c9c9fbf08c7cd2acdc38db6780fdc002171307322dacd236932cba64082a03",
    "signature": "0xd231931378965492ee0933b26f98a682b8ad04add661d16c4e1ad66f97e28a0654eaca360c73d2e8498920f3f9a17a0b49da58c5efe8083c15835e90a73367941b",
    "signer": "0x7A83A37Dcb69154ca9B6dDe71F1E0Bf5ff316862",
    "userId": "928055827"
  }
}