{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0x21eec7d0639d1ed267c358cffb4eaba0898cc25583b67a87c41116490ebb5301",
    "signature": "0xc6abc7020d8cfdd0ac6dcfe2f2e150a7ab8bc7c8c9342816604b5ba18c379a891d07fc280132f67171703016c492a590b88de4eba665e74568c8ce11f6df5ab51b",
    "signer": "0x9e61DE1c33f32408C11bCA4682c799044F51912A",
    "userId": "499136071"
  }
}