{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16692",
    "entityType": "User",
    "nonce": "0xffe23fe8fd20a1ca7eb0b27bdea0630b63fd501ebaac0e0b3255711c23c50912",
    "signature": "0x6aca946233e968d07bd076d3daf168cc66fb8839acb2471b07be47e693fcb08e737e5e6b2a03525e7f2f268e2b6fab3898fd775178902d512252b25b7639d4781c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}