{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "938150820",
    "entityType": "User",
    "nonce": "0x5cb6ea605855835afbbcfd87427ac106c581fc93ff9785ef872b51bab255ec20",
    "signature": "0xbbb24ac87bfd02d2f8a40aebe9b849caf7e4a66b075c8ffee0c6f59febc1aede5ca4437897b1e2db75d8ab8d78131e263bd4419cfa57516f75d77981290579891c",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}