{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72597",
    "entityType": "User",
    "nonce": "0x7ad311d78a7a2ef988a6d053d811dc5418316c88553a98dbefbac902246f0b6d",
    "signature": "0x54047d88c9cf8534824e0bc1f828b820ac6719b9eb8bd9895e128edde52aa4f544c16eb918dd96743fa6c1c5b12d89068d052a2f8f5cb34eda03170daf3d67bb1b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}