{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa9e134ba2dda8ed31387d1b65ffb956c29d7333e31570c315ea7c96983410e82",
    "signature": "0xce5f1909a56b1589acec989e34ac5a2587df6428a0ef0a2a781c1578191d4fe406e8953c50a1e57a4765260e05aa5996709a4e1b960ddd7fe2286547977a6a2b1b",
    "signer": "0x6f04C187ccb2ebe59052a3167b693fB276d7cD70",
    "userId": "449044166"
  }
}