{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164928",
    "entityType": "User",
    "nonce": "0x45036c1fda505c91fa3204ba6b24a016fb35935cc35fd192bf3caab1ecc7ec2b",
    "signature": "0x8ef1aa28ecdab17640733c79f1e862b82908c0dfc05d28a69f10b53fe87d2b1e2a9d60795eef4c74951eb47e7477785f8d1a3e3394f5c00ebdedf357a15d545c1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}