{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe1df9f5833bec3a35c81daf8e8f394166376b0ccc25e579c05d5615be4fadac3",
    "signature": "0xbabcd83145d622d669a409e9d5b7f5396fc2f6debef583f490313e19572a30b5585e172a023953204e409525c6c80d688ca03e5490e8df4ad94bae37b5b89dc51b",
    "signer": "0xA9b07396C6621Ef0A65965bD61de72FdBebf6102",
    "userId": "39933200"
  }
}