{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30356",
    "entityType": "User",
    "nonce": "0x3cbe0fd768d16c9436df0f6d72a9a087625f2be107d823d1114c88eb58670662",
    "signature": "0xeb9ce98c27250a6cb58fe3dc85851eacbd6decccbd575bde422c3c16eaa91e4356f14d36221444a176cc68ad89b2d463a2d37fc63e5e6800c3e77db185dfa7531c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}