{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x94945cc4238c103c1358d10489a3ea050f9d4343875e419052eaa56aa472765a",
    "signature": "0x97bdfc5b8a0f53ce6711bfc5b4b5149fad41a0f33f28dd0c006d948d49072f066ffd8dfeacbaa4286886c88c44d43d5bf8a7b71fcbda1f29ca49173d24171d511c",
    "signer": "0x358Da94f2C71F6bCdE7e9De16B2Eda938de80A40",
    "userId": "290271473"
  }
}