{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175210",
    "entityType": "User",
    "nonce": "0x3f199a43b9bda4904079d1e2b4033cafd8afcd624deea654eac0fca725efd3c2",
    "signature": "0x2d727f2809887792068ed87b4fb9c88302f91f8acfce1759c723a891fb4390e924d8dc205bd4fcbee0806facb3b861617b1a161193e3b73a5c6024b17ee393621b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}