{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "776994971",
    "entityType": "User",
    "nonce": "0xa1c4bfaea958f31277789ec8418cc5e0f15e97d1c61b90eb94a486b80d693e33",
    "signature": "0x8550b59285096129a5b6c00c5a99ff86fd2858f47e9c35e0cc39911e9b70852d23b451d857dd0a591e2db18dc0e87450b11712174c6d1f88d545cfc2c73a55a91b",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}