{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123163",
    "entityType": "User",
    "nonce": "0xba4046de92e61967cdc2bbfcb5e355d8bd1094ecbe6742f97d1e023c799d3f8d",
    "signature": "0xbb345eabc9504404c219ff665f8adba0fae53cccc9f76cecbba4d02afa0500dd02145260fd4ba71b1b301f378ed4af5eda2af84c51cc99fc1984f2591737a6fe1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}