{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "410109294",
    "entityType": "User",
    "nonce": "0x4d37bd5af51865861f391db93093e7c6048eff2be8d63bae0ad73b6d5ea060df",
    "signature": "0xb5ead346c3c9bde45f239aa432293976617820f37ee2cc76735e500d1294300c44e8d087d47bd6eb28796dd54a4f0e974387287f372208ceae85a4b3b40a5e8e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}