{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb374bc6cfec7c7ed07d9ef97d6e7590fecbb860eae083f2dfedcf57150ae6de0",
    "signature": "0x30409bdbe2f4481f674da93b0ee1e96aba060958443eb3b50fb48a9e5aa48208737818719b70942c6923fbc6d2768e531e51dd86002e43085bd2f1765fc18faa1b",
    "signer": "0x6D9Dc84F9aE52c2de7dC50bCcfd34c7497eD9b0D",
    "userId": "827366479"
  }
}