{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951616224",
    "entityType": "User",
    "nonce": "0xd8b13c955e3a41f8a317affa031c0b9931af3ce2c1239075e915246e26266c05",
    "signature": "0xd0e08bffa4ed236067a52d020e392959e6f8118fc19550bd6df88ae6178d95c16e5cd39d2b98f477d3be53344404a5d52dba3c942384bc59147bac4466bb47fc1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}