{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584724126",
    "entityType": "User",
    "nonce": "0x7eaf5437fd93e768038b42554cd2c2573e6d1562ce38d70f0516f52bf58e9441",
    "signature": "0x7bd4f32945e6448708f3bac1af178a2b1f6c156878f1385001da09878a03300b299caa3b8b5e8bc6da83878f69acecaa292c068fb7a5629175a7ba6e5eec30da1c",
    "signer": "0x7CDA77E08CecB6DBD20490207A731143FC007CA7",
    "userId": "8550967"
  }
}