{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40274",
    "entityType": "User",
    "nonce": "0x2b585a3f0726e696ce5243968bc52413dda8a5b45602a874732bebb792a41c4a",
    "signature": "0x2429f6a055f86668e882ccf1c4f7665ed18c5efd915477656e6eb10b58f45a7063b4211cc011ee242e864f2b3dc3b5df5d7c391fc0fea0333d36a3638df4a4631b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}