{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "373527",
    "entityType": "User",
    "nonce": "0xbcf2d13a244d6bc50e2fd60fc52d6c25bfb4c50afbff71069595504af239c96e",
    "signature": "0x35bec22bf8efd855e2a1fabaaefa8c1892004bc0c72719ca233029d25d8bf0bc0001203e9d3245656b8d0ba6ef6490671ac28f4c0e493fa23ce7cf6e03403b581c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}