{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x989787c8fcc0f02156c27dc816f7d1a121f938934e12189b16c8563a59cb4989",
    "signature": "0xad69a90c5936d2188fe34ce0941ac7809e185b2a524fc07b0956ebf2f50597107580d2c7fd4c18b64a6eb7a9d7c62b9ad4d661278244233bc1480aa911c58d8a1c",
    "signer": "0x2648F01Fe19B8B1A4536b147beE183028875bB73",
    "userId": "954072419"
  }
}