{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64586",
    "entityType": "User",
    "nonce": "0x5dc1d7555cb12bec9c2fe8778bc8b8ec4b6829320fd7770a666061d54debe515",
    "signature": "0xd4100d1bf7a1550b4a32fe2518b0b848017611e4956b5e670a472d3c7484581369233b1382a232643a6995fa2cf8bd2f2a8f4a220840d517dce28344230f2f031b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}