{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42665",
    "entityType": "User",
    "nonce": "0x1e897e10b051c9bbc000dd220e44bfcbfa657a6a606b6e6bd1ebf7f5cfc07381",
    "signature": "0xca9852c9ae6a2cf3e4b3cf4f84c0e4b1b8ef02a20b3acd7ba4a665c36715940b2b53a99a2e2c16e9245775a5894d5faa75b2eefb49b92a4804e35d0935dedee91c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}