{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "494269",
    "entityType": "User",
    "nonce": "0x5d24f9a0088a4e71b757f7f93cc1347958240de4c8ff7954e71db7a6136c10d4",
    "signature": "0x17fdd69057259c46d4c66422bd05a419254b363004d37d3176599f93c00bb07046e6ba7b510027e8f483e394e29103ac4a6597f7358d8859f03bbf294e3490c51c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}