{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107815",
    "entityType": "User",
    "nonce": "0x86208fb7480937b9800d44776c35a0d4535fe083b2aa3fba45f24ad816951727",
    "signature": "0x1a09ea4e12d6b27f8aa0c1d94315b4103ff6e5a0aca548a7c76fa86b229b70002326b90c65836a23eb5ee81e1273d17c965641a02cab6102a7b0500096a772611b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}