{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x533799beb30603311c8c40f375420274d2605d1860928b080e54594a925fd588",
    "signature": "0xedad2d63400cd5a2fcccfd7e0aecd3c4a882b558952ef74b5abcf12de900779d49f8dbee11380cffe9d29683695b4650f54d849cccc0ab01a1d4d71234dca4841b",
    "signer": "0x9DC722Bb28369653d355D6503Ecb6025da3DDfc5",
    "userId": "293510160"
  }
}