{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10601",
    "entityType": "User",
    "nonce": "0xc67afd55d2c96775252fee3497ece4cb9381b1314ccf39ecebaae9ca6528c157",
    "signature": "0xde56e210fffd91e07f09d190c3a63d5a3af6ce9773f02f8558412172d9db94f86ea97c30ab4687374ac56c8b3c7342aba1b48a5bcd8adb3ffdf1ef395ffc15451b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}