{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "938519346",
    "entityType": "User",
    "nonce": "0x6b2dbb60330d6654820985bae3e29d303246d00b7a63e537df9595d9663087d1",
    "signature": "0x77461563c3208e38f0467f79974d329cca7b504879ff8da3a753dc01a027d99168df6e8716b99d25124be0a1553004b7a9b918c2e55ddce45441226f331277b51b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}