{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "344158827",
    "entityType": "User",
    "nonce": "0x2447e4a7c2cf5a08fb07f77cc0a88b61a470b3d362893fe608cbee97049e110b",
    "signature": "0x12a0043db118d22eb6f9a2ef1b0373da48fc69c49d116a61d868d539a45fd82150b6153df10263a02e60f9e68018b85e41c3057f885c13f1023ff4163aea10cc1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}