{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15112",
    "entityType": "User",
    "nonce": "0x27abbcbd7ce21b44a94bfeefb987573e7327a924b66846c93022c418368558e3",
    "signature": "0x52b83f015138a7f6d9ed78a8c6574216fa0320b643ed58a74c9bc730f0392a356bbd4c803c6a52477f5192691dc4c719b32246bf587e967fae04bf3c296f745e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}