{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "487028014",
    "entityType": "User",
    "nonce": "0x08d89d5cce0869232ccdf17b4c5c4a649b48147fb78a92baa9f616ea2dccd2d5",
    "signature": "0xd556ad941b4f3cbae7da2f06afd1e04ad2f329e3b28678682f437675fae37fd51fce74ee322b7e0feddb7227360b33b9fd373c7f97cfd359e87ae862f9ef4a6b1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}