{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0c97876f244921e3302817d2fedcbf42bc76f2785243b5618e25e0b87a52c9b3",
    "signature": "0x69b0bc7fcf5515185ad02432b61b1ff41f0e6d87548cb25696da6bf14c9ca11d0ece8a6458b4a60f73eef0d291256100a4565f4765a70a50cda5a021856a44781c",
    "signer": "0x6E1669e0b8d73EA38c2C3A7b05EDd44438bD96F7",
    "userId": "159580874"
  }
}