{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x8a0268471a13dd9ad1a67f3d59dff9b312be60b535adc4267066f3af92db7ca0",
    "signature": "0xa555f911334b73636588df36b404142142b972940938f3086a35313601c77ede6d34b0cfe9bddadd2143d0baea04bdc0ab65f92ad955459a20c35daf98d9e4f31c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}