{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916107216",
    "entityType": "User",
    "nonce": "0x51ed9076fbbfde20bd2e6c305c848f83a6529521c54a8a33414306a0b36de47b",
    "signature": "0xe1c0d3433ed42321cd1bfafb33c1a36f7f5e7b7cf4c4bc9f3774cc661d73f389475876d9067e498e98a5f631e6c49a2d486c395d714970136f42302235e581371b",
    "signer": "0x03015d975f8B0d07425826BFAc15A4492F59a5B7",
    "userId": "658736296"
  }
}