{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "389177",
    "entityType": "User",
    "nonce": "0xbbcb5434f0d7cda4506a77f37c842584e51553475802b663a9cbf7433150005d",
    "signature": "0xe9732baa1b96cd8ea4b974341636dcf57bafffe7e9529a1ba989a97595a57b5e1aa8ade47762a1fc21ec245d1af9c6ef04027d20880cd3faac8d1682c83818241c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}