{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125044",
    "entityType": "User",
    "nonce": "0x841e2e0851cb18936623baa5fc46c464d2a39a0fa471bcd744fdbed1fb0e9948",
    "signature": "0x42dc0696a5bbeeee4002b402568ab93d5495b0b4423eae2e3cf1e26730e4f6d47d739242bb2aa14f93f70ebb641bf17d684ddc03d31cd616d96dd90492a199f71c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}