{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "235421",
    "entityType": "User",
    "nonce": "0x0b7a41eb979071b1413417c0adf71ea96cac0f85b0059e01620c6d663eab3841",
    "signature": "0x48143a71747c99dfe34c9287756287aa626c2387844e12f2e3e7245336f1cab31f3f9500882f4231a71969adb6af2fdfe912a6443fdb85f78b5ef0b7db6e5cd31b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}