{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3407",
    "entityType": "User",
    "nonce": "0x01956d634aa46d0634eb45133af7960ee15b21ece1cade1142d754b13f5a68da",
    "signature": "0xf1dc042d032f5428ea6f37a4cd96830db0c51ca9d58b53fe613801f5397d2a744b3a9a197aef810b1cc0b517a95341358c67d7b06e9b9a52ca5bcf3d8d9474411b",
    "signer": "0x7662cb86A5Ab2f46DF58d87368873d0f07FbC1Ca",
    "userId": "875856435"
  }
}