{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99715",
    "entityType": "User",
    "nonce": "0x546bcb5d1c9b45e95612a49bb9104821a0229125e881a6275a8324cfb09fca80",
    "signature": "0x52b78a7122a53357336cf396aab4a1ff8a3c3303c15247c3b16919b2ab4bbc4e6bb9dfdf66afb63c059e621e63079c084324a6f0929d55004e08c40285d43e1c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}