{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "672274420",
    "entityType": "User",
    "nonce": "0x9cb82eb199dbecdea77fd282f1274f4afabc82b60d52a2163b56a8850d4e310e",
    "signature": "0xad2b4ec0348530aa194ef60cf62d5b8c1aa568ddb26c857d7d53d8831fba9680438480a9ba9a70115cf02783373002bb3f7207ebe4709985441aa2ce969819871c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}