{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "716690198",
    "entityType": "User",
    "nonce": "0x6f66c46dbb1cb0262b016e488d02fec9100a4b6330b0faf224dcd9f6fa8e7a3a",
    "signature": "0xaac5f58fd2125653ca8c44ac243d336b17eb6311827b6c064fbb6f5dd11b82d2044ade83e27b02f6d62d0428eb2c858f6c64d913a7fb46b36c50d0b59ee0ddd81c",
    "signer": "0x645AAbB3BF848412862B16580BBDb4CEeBBf2EE6",
    "userId": "47150955"
  }
}