{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30942",
    "entityType": "User",
    "nonce": "0x29175f4c5ed36d4d450eca87dbae4b8d851f3a146ab63b4f52fca1035908faf1",
    "signature": "0xb66d77e2a6ba4f0deb5192a5e2db5b9624990e663f49c30b2eaaa0e318120a2615ef7485e51389a07ade786b666d86cedb502dd9ae77d295be2cf9374002e45e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}