{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "338035",
    "entityType": "User",
    "nonce": "0x70bbb84452e648de814e4ee89452d7b01e886e5a0759f5aceb01fbd797d7a76d",
    "signature": "0x2ee269bed42e1e3daf6075477bfdadfbabc1ce96aa659d70702469f2d570def252ee336d014fdda302613583681a11788e300c928412283649a057487d7d8fa31c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}