{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157194",
    "entityType": "User",
    "nonce": "0x868b5dce57da3a23c646fe3e27f88a3ec5ad0a3966f6f54cc4b39fa5dd21f149",
    "signature": "0x7e30b51dcad07e62bf5fd05e80a31a4b94b4a7a5547a935070a3de3ae1e6256a35c93dd52d0686b5f2f7162640857502084f24ed7d6e72efebe22aea3b23d9e01b",
    "signer": "0x75d782C5a68f76DfA69c426479B6ad14383D035f",
    "userId": "328056745"
  }
}