{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "58029",
    "entityType": "User",
    "nonce": "0x30103ba8fd13ec569d1d317874fa33037c3d30aae9737b71f03aaef148d3cdfc",
    "signature": "0x379df2a3322a5e9d4207a64161a3a49457b358cd6dc40b331703d66cd733bc7a66da02f85c3420918dd9a4dc24fddc229eda4ec8ab98d7ca5e22c0a40b6096e31b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}