{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7504",
    "entityType": "User",
    "nonce": "0xf7384853858b7623044da289c5a69a99a769453784bd3f98da7c6ffe8387628e",
    "signature": "0x3820d2b255d32b7d49981e662dc98040b57ae6b36eb6bda246a436d969889e713bd9bf03683b53e62f2ea46828cedafc8da6073bcd311d2e7f03217fbf542f981c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}