{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x934c88ed2ac165ea3804e63f36b108ce02bd3099dba7d46fcc3071695eb1c890",
    "signature": "0x64c935a2f76fd1cffc1becb48cb7067193521b022b1daa78be868ad1535395de603a2fb509ba750591064bd365cf962e532cd279ca8a6179205d2a18b4bf87321b",
    "signer": "0x75ACCD4160aaada206b4dCfA68E88187C9ba9A0b",
    "userId": "799571887"
  }
}