{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x80a655e920d7fe00968fb9a0d09eb3f973abc97db6e24692d40d07b8a4dd67cd",
    "signature": "0xea8344493e8c729c42d534b46bc34c491e8f9f6d4681923db9463db17da382550df9ab56d327b2ce8e270a8799b1ce95ab60f4246bb730471bd1d621b1e1f32d1b",
    "signer": "0xD449c8DFa572fEED5a806cBc774F686025Cc7AC9",
    "userId": "111392384"
  }
}