{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "34815",
    "entityType": "User",
    "nonce": "0x67ba5bc469bf6087f939eab2f27b74ca18aa1223894598c08fddaaaa39fabde4",
    "signature": "0x5a73ccf07935f13b07e64286537ba5f4807a7d25360317ca7fb3c9eed59b0f6a4344fd8a12f009a671bc778a36ccf810b07ca11e01add6187039e076348907661c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}