{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240669",
    "entityType": "User",
    "nonce": "0x54bd08b768106b1a24253dd4d7d8ad9e324ce3f3b404aa00417388dfa45f08d3",
    "signature": "0x362ffc2c89a40a5c16431cacfc82d6ff247ef208db661b571039d054a4cb7e264a308b36e2cd851d63dc94e49350f39b4fe50f738431930481fffb9f0f881bb01b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}