{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x307be4e2a30fbbae34c5c6306ab33714ee807a5b64a2f777f7c360e3e4618cc8",
    "signature": "0x3dd9ef48f568cba6a0375b44c5d376f4aa8395399edeaf489d46ad2bc6424eab6b09eccccb8091b69cf9e67a78481820ae4f7c0296ee7b4f602b02621b51f1b41c",
    "signer": "0x2A25841877cdB566b098A5579fe0ebC0AE53bB10",
    "userId": "211917910"
  }
}