{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "834614556",
    "entityType": "User",
    "nonce": "0x0ab1453c10c8b707ca17f601a1696fcb9e4d149255707765e203ed88e69c0c55",
    "signature": "0xd6c5ba92aca73d198f5bdd95972c1d3c8c145801879a5f4ec2b6aa8c4ef2f7a85c9bdfc3fbabcbd7aec71c1c7cab890fbf543fa6a61eeeec396f15314dc4a12b1c",
    "signer": "0xA2431a8293fD33C6289244D08A91489fF2C9f18A",
    "userId": "325308787"
  }
}