{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4901",
    "entityType": "User",
    "nonce": "0x6076c47b161af0fcedec54998c144dd810c9a8fe7ce498f75cab0a379d88e769",
    "signature": "0x0ee3f152498c4dedb808c2e49cf34cbe7c7064bdbf556470aaefa9539aa6e5bf7ba4f5de1ba23af0158555978d234eb8ccf6d2029e258d5a393094ba5684d80d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}