{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61618",
    "entityType": "User",
    "nonce": "0x0340f4f23bb183ba5fbb9ff7c276fba4d843a8da1c6e4494b2ae3a28519677c7",
    "signature": "0x930676e13fee6f760666c07d7713394f5b4e28f45c6f5fff2e912abe7e95c6c814e17ca65aa968957a76c12a49231e3e95ccd4ca21ba940ffc94d11bfdb89ec41c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}