{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53010",
    "entityType": "User",
    "nonce": "0x1dc93ca1e2f1cd78bfd1737c8a8347cc0a671bce2c990ef2c4b973ed53febb83",
    "signature": "0xdc2e61f24d5dd7f4e569d3be5728d50f75ca1a15214a5e29ee4d58bdef1259456dc0189b3cc931ec8b8fbeb0ead6ab268fb50cd692d1be704fb90756693fbb1c1c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}