{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "316500",
    "entityType": "User",
    "nonce": "0x9a8d88e85da6c83336d3f9a9e8b369a54cc1a4f1cdd93a79d4baec6d50c5da72",
    "signature": "0xc3f704a9bc3079c4d9d569d0ea0e2f9f08e8f3109558d1771dc6dc18c2e3500b7ec235f4b01ac20e2b7c336f0611776dd4336b4ae2973a0e49e3feb2c69b41d11b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}