{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x634f44dfa84533134797d971675c0691c06a56bac326211177ba124d8d1da192",
    "signature": "0xb7552fc963ebe876947b2cb85f3ad6f75283055226b83d630570885b971c87945b562c79075a30ab424848f1ad4626071c4ce346f3037e60e5cb32728ea02e411b",
    "signer": "0xfa1f98f0530E55C2BEFA45f0F1B3A699b4559136",
    "userId": "149566028"
  }
}