{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145781",
    "entityType": "User",
    "nonce": "0xa8cfb6f2302f4077296ea9e06b3a0563deb0c81e00282a2b11dcaade2a3adb7d",
    "signature": "0xb45bc93de4dbf208c26f3bc5c015a06450d0bc77ae288915082868d88e6645e20616d1b887ae1e1303e48c81260ef0f419a9c7d2ac9cd83492be6b2027db156e1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}