{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0x63200b8e2421f528c6446e4005290b2a570deaeeee6779904503fe70ebd1b8ed",
    "signature": "0x84573a7e44a12b823490d8528f9b23b6ed7c512fe9c583a2c72d703f5a22c37b04dc51a1e8e3203768b3d34ef4d084e8ecce8c2f98b2ce0a18a2e6c11226e3151b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}