{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x28f961f278cee5ccb4fe0b5ab84bcf46824106b3df34cacb59e4de1647523a03",
    "signature": "0xe92d77b3e7cd5f4b27abc72a5b23a6ea1aa82fef031fa5e01df379e687889f527ae0439c91d6995c44fac19eb712be6a239acf46d0864b0aacac5ab59389bb4b1c",
    "signer": "0x4771D256e7217EB6B247e8cBaFbbCb199424a6b2",
    "userId": "836389559"
  }
}