{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294804",
    "entityType": "User",
    "nonce": "0xd6b35071a25a88628631859427cbd74c38801020ab3b91cf84f5ee669c8bc352",
    "signature": "0xd263023494472d701856d2ee5e44018c8baff01015535ab3d007d1a90648e8561533013dc2402bf272b57830cda78198df549e91e964d4b05142785430d4cbf41b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}