{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2ad71087b1b03791024c70c7a0a0746c8b103f4df31b50fdc06476bf452e2177",
    "signature": "0xb88599b6cebec2d39c6854762ec2417e5e0e224949f820eb55d043f4dceb554e237029d0868dbc70fc78d1314a6693059e9ba213cb7c6e09590aaa1c04f7a2fd1c",
    "signer": "0x8BD4a197850b688A4866D95c96b0bb7b19de4082",
    "userId": "242409814"
  }
}