{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "624459316",
    "entityType": "User",
    "nonce": "0x668323067d7d6b0575115afc197f84729bd84ee1bddd32664c55bb484e2ff0a2",
    "signature": "0xf06dd538e3609ff24dac925bd128d3126e691e187106d464cafab93b8861189c056040461d96540c4902fe3930f73f33b24d048b56121fddeafc3bfa8612c60a1c",
    "signer": "0x9c1a2996a6DCe12e947BD7C8A755b6150A3eD5f4",
    "userId": "474113241"
  }
}