{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x078fd1dba57c79ab51fe426801b6030524e127fe1e7096ee1dd4121f14d9e26d",
    "signature": "0x0cec81e3ff084b62391cdf25f365dc3fc94d9c65667e9dc3e1432e5f8ea6add16cfd30cc48faedbc634d26a404029f9bbd224574a6e2eb0795c1f3f0b0ef4e881c",
    "signer": "0x03216709b3C72cC48C8Cbd8E8100689b00Dc5b63",
    "userId": "530432949"
  }
}