{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0e83350f1ea001f2f6a85e048254b96f4d3e6f93be6274e8c70d722e38e21af1",
    "signature": "0xd9ed7ba46698e56f18dc510c8e9d754bdc27b4e8a041224f627093d062913d13534174c27dc1d1cd5efacf28b916fd73b439eeff8fa99bbe568e0d2a97b746f61c",
    "signer": "0xaB7367F16faAbEEFc45929461b4405066D0f2cfe",
    "userId": "876097822"
  }
}