{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "398267373",
    "entityType": "User",
    "nonce": "0x7ef9db558f9bb90373c9cc8498af30cbb273674f526435b742277d17bdb435d0",
    "signature": "0xb67c0f162d074242d5ed8b85168cc531611e6f5383962fe48f820969450c00a35119193bc0bbdaa879b7c5e342330c8e306553495fcd106a832897fc4954b6fa1b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}