{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0xb41378d2e85dcf81521fe064d1dad6a2f7fd6afa8080df3fa607c3625e666b2e",
    "signature": "0x6f0d755d80df0b4bba354e0b810b2a98a170ddb1a9819a91ef5d0c2e399530b23a865ae74c141badf31f4abe10031b0e1c242e8eeef43fa9726b5418e7f93b3c1b",
    "signer": "0x9e61DE1c33f32408C11bCA4682c799044F51912A",
    "userId": "499136071"
  }
}