{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "633359681",
    "entityType": "User",
    "nonce": "0xebb4ce76e19ddde61898a1952a69c34fa3653ab1d93b95d9b826ff63011f7d2d",
    "signature": "0x36f2a0caaff361ca1358ffc5583d24e97966e867b4c1c1d139f666440888ae0a0aa3e7d8899fd401d476943855ac40a605c6e3820ce60fb107f1869393a88d5b1c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}