{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75675",
    "entityType": "User",
    "nonce": "0xd7effb67dfa8be121733ea418ea49acf68b83211d525aa99eb28aa30eb7f7dca",
    "signature": "0xd97eff111b021f0acc093c93d779913b4a1d89bd5e9adf3dd30f93b1e1e3134b45703a7fe18a57f851bc6180ccf6658689ea864f67d4a35082703e5698b15b1e1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}