{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x3a3ed9856c24bfc00d78e173ab3afbdfc0ee0ccce934c1e97613fc9f64257ec7",
    "signature": "0xa5c759a35a1a5a4d4fff4fa8cf3673766b1dfd98744f1a39d14beeb4115680e4302a925e935d223109ad18f1cee3127f765a42809f4dac8698fba6c0aad8eb721c",
    "signer": "0x6ABeC6bBE57CCcb5414C4f1DF7397331b9828727",
    "userId": "750637079"
  }
}