{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "824478223",
    "entityType": "User",
    "nonce": "0x489bee5a18ed319a49222d66e025fe074d3e5c8523ee24192fd25d369808821d",
    "signature": "0x96f48d836a958a8dc7fd2ea4afd2d5dfae18df3b2d484455103475e95f45976c71c92ad90dbedbc351c9b15ffc0426dc61d1715318716e8c9e86f3ec44c22b4f1c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}