{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50936",
    "entityType": "User",
    "nonce": "0x80e7dafde574e4dfdb50e0388b5d8e13744827cad9b3b7217cb8232c91410e61",
    "signature": "0x58603d07908f281544b074ebecf3c205939c51cb8a67751871c7cce7bb70c32c66b8daf9a25fbe4e468c39ad477e5f2e4b8bc0b934b3e1276e133929d2649dc91b",
    "signer": "0xf0CB0bE09587831c3cC7689f3e01De1457073033",
    "userId": "743836779"
  }
}