{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x887d34fd50cfc9527682434c8c8ba8b3779f2ac50cbca62be565834a840a70fc",
    "signature": "0x2370b616f2a71ac2a3e73944665c0d9159a74f1c5c90795b0e0be48832d984356458ba2f207de3496cae26cbb49eb604c7a5d7f3fc305cd6c21d928ab09f80081b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}