{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593945601",
    "entityType": "User",
    "nonce": "0x692dff6c536faaa316d2e9928b1aa817daa28073bf28c0f088a92790ec43dfb2",
    "signature": "0x6c74a3b06bec68645e92c34e2c1b439a535f4e0a76dd17d5565a549a0ab7c3b978ff2c53b2f2a193b5baefa50fb02c84246fc2b9826c64629be1d1a1a4e5b3231b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}