{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "450694809",
    "entityType": "User",
    "nonce": "0x2c0603e98c37acc3905dfd2d163f9bc81b4c212c8a09db5b88e2e8755bddcd56",
    "signature": "0xfa51025e5d9e40717b532376dc4eb89f10d0b9e09870e5f50e770752387647915e98c73916750c1b676fe5a3ae69a7d11d6fb3810ea61abcbf51e28521c0b7d01c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}