{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943474958",
    "entityType": "User",
    "nonce": "0x1b21527d32e0b9eb3b907cdb2fb8bebcdba9217695bb05a8ac6a9c80f39df315",
    "signature": "0xd3133bc771e1fb1b42e1e108cb4c429f0a87a52d28c084736539c511260bfb972b52a14218c5a23f0c67860f0d478b4269f8deb0ab78b4088a3a52d0dcf864411b",
    "signer": "0x79375D6d575fE2a038916001077f90CbAE12d4A9",
    "userId": "973873678"
  }
}