{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa00cec7d203f9517ee0d9773589e1b666f6e775ecd5566df99463d00a73c12ec",
    "signature": "0xf549dd504924f28d01e0ba249c21cd6e7707e0b0d9a5b82dd19b9fc8242f17c04bac08a4aa99809c79ae2199b762c1b3587ab87d62da9a6b6cc59bf38917ac761c",
    "signer": "0xbdcE1BCb2482b8E3ACc92c3944103F25474BC6BA",
    "userId": "987325086"
  }
}