{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6161c83f95423f1f4342312885ba9c7c6a57f611477522cc0e0fc2a64252d20c",
    "signature": "0x60d899d4aa16468c4ddf166bfe85917a5a43c22808c97ef2a4b90a66e136d3c473cb73a2c5e23541f783cceefdd8ff3ca7532ab0ed9559973a88e831db54755c1b",
    "signer": "0xc315FACFB47d18B1a3E4F507214A320BD0b4f8dA",
    "userId": "93743409"
  }
}