{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5b9e97e130bb41fcb6f2708d85c6e61173500884292445c56f50853c5a5ec17e",
    "signature": "0xd2c1f8ffd4415dde79ba55f805e060c823b8d4977d36a7baff6a5f263b92e6cb20eddd816492cc15fe76f7bebd234ec882db9db76f17729fbcf4b93cedda9b751c",
    "signer": "0xee24f992a791b330c115904885f2727781B75F8e",
    "userId": "457140696"
  }
}