{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x8023021b92ca5a00edebe589fa1f91c92b1ab6600db0fb62cbc643a405799116",
    "signature": "0xcae910cc1a20ca1bf6e13527fbdcaa99dcbc092fdcfa109e32337266ac5d6a0757bcc47e027b1d2f4f116354bae6659c4c7da9cd4097dd5dcc7c5fa0bb340fc21c",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}