{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0xddd976f414ea8292306651bc786bb7cf3f3ffaf7db2d7edf217cbda70954acbe",
    "signature": "0x8642940b2f55e62976d0b4503390544a8264b536812e5e52b93de661817dcc2e5144d639df54d833864ac0b76d2d8210e2974e12f0a6e602d8b9047f323cd5a91b",
    "signer": "0xC59f7055B078B1Ee57c271E19BE5Dd7033FD64f5",
    "userId": "950751701"
  }
}