{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "547969682",
    "entityType": "User",
    "nonce": "0x4df5d8a300d370559233936e45384aae977aafabbcf5ae85e62f76611fd30829",
    "signature": "0x4257daa8a0a878e71341a47088bfea438d0dba9655f8d92949dece45a2b97c4a34b67a85e07c8bdd87e3ed3fcd3bd487ba6888a77dc60810fd4ca6c05acf59101b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}