{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923480019",
    "entityType": "User",
    "nonce": "0x1a9084d84dfc90f9931288a66924d76933bafa52887cf7efc61d446dee6c97d8",
    "signature": "0x370517002ef5d7884cf173f19ff4e732ad85c2beaa9c1bfa92b7ded946df6664546ec254b3c0bc09cadb0ba9f96d3f95bb74342e59225c20608c7ec25cee9dde1c",
    "signer": "0x6B239e9B75f27b519de7Bad3a26a0b7d30e32D3f",
    "userId": "311257477"
  }
}