{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3575",
    "entityType": "User",
    "nonce": "0xf924c26a7c3aafd45af89e17f4dfa208b703ce74a37aed2859b7a3338f79385a",
    "signature": "0x2d289f30790dec952b8f8f2fc9f8671bf890ebac37710e8c9107ef6eba2b57af64a8912cc17b077620ab9541f797a46848c276dcd29f27e7ae163da787927e241c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}