{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201249",
    "entityType": "User",
    "nonce": "0x64e24d09f0ae9cd4b311c61129a7d9d4596b785e1cb3f50c2e3e3e0040247cf6",
    "signature": "0x03e9f267784b499a175d0f8601e524ec7ecd6b797770375b44a226517a50e1642a6422ef9fb7c8e9da88595234d923c8ce10772fd4248cc844cb9fd3fa5a450a1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}