{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8e2a37474ce7b9196a8ee6c3446348bd17d709ae5b17cf38a58a9ba4cb3fd86b",
    "signature": "0x92dd38cc51c3bd7573402906a647c6d13ffd0c8b3c0ef8c8ea772f2b1011e8767b89ccff198ad3e946bb29f30c8f488cb22eef8956bcc9af39fce24dbd39c7f01b",
    "signer": "0x3943B96e5E81a41436d5A33B5686253B02cD5165",
    "userId": "411668822"
  }
}