{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383612",
    "entityType": "User",
    "nonce": "0x10fba840816716e99bb8a89e782c2503ec304e71c81e7aa03d713d93c667cb3f",
    "signature": "0xbddff7b1d0a4da15d4b54213b52d37fd1ada674d1d3a2028e8876f7ea5d2b53957a108f839de663d9097cf4c6ec2792028e0bfaaa8a0d56360d639900cbf74681c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}