{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395602",
    "entityType": "User",
    "nonce": "0x30fa8858b360441c28ab6e0460dae3f6a51dc334cad64e8eb376bfc3b369b60d",
    "signature": "0x10af934ad552372c6f624cf268958cc8ec8719768c3711211e269d14e8efa11e618e1e44796dcc4f176c187137d47dc02e938592ecff9b904cfce8489e2cdcb21b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}