{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "921159234",
    "entityType": "User",
    "nonce": "0xac7897ef5e749333dd80a9649aed53b80cfd90e0a24db2e797126a58db6972e0",
    "signature": "0x3ccf769bcf03bfd25dfcb49bbf2d2e5c31643c7abd0dcb3538c3e497dd699f0e6d36e9ea546d5d8053cbf6bacef968d2c19928a064620ad8045b37ed2d01ce161c",
    "signer": "0xD5A23Ba4f6Af4d6cAFa75CD85749ed903f697024",
    "userId": "293330068"
  }
}