{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18836",
    "entityType": "User",
    "nonce": "0x72d865b5c5a10bff132a8fb633ffaeaa53b3550cc1d91ddf47f4754827759096",
    "signature": "0xbce12160a1189ef442ebcbf265fd97bb238d5589c83d5dab262d13a9f4f3c9b4183d340a838f2dfac57596991f433f56ce234b08a5fcc1a43889e6e79b89db201c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}