{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140979",
    "entityType": "User",
    "nonce": "0x5427f842dbbbe367025f8cccca32804c214fc15247cee6c2bc871ed9898e1d15",
    "signature": "0xdad91590b48296be2754f93cb8c79050e46db0bb898c1e1dcc2e84e681d38544266435ea4ad37aadace8a868d798de7f5bfd10ada0602169d99d1760fc2fcb7f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}