{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15952",
    "entityType": "User",
    "nonce": "0xcd9352790cb77ca5c952b8fabcb10b22c84d86c4adb9b4dcf397d556fc74af3d",
    "signature": "0x62d5b3ca6aa0a0c55ecc47255ab9f993ba149c8ac35f3430ed1d677feaa0f51765f86230ab631591f7247d5b6e0ed1c86a47404f6cad0f29225ada2d597e70101b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}