{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "737419",
    "entityType": "User",
    "nonce": "0x76b76cd5fc017ebe561180c0a098b448e7aab6a2ba64f356554d235ebf4890f0",
    "signature": "0x967b7e40176b92578d267055f3223dfab9d230ff28257f113ca897b3da1bd00704e8a25021a20b3d41f8be1836162161753a8c763041fa66315fa8905e93818b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}