{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6411",
    "entityType": "User",
    "nonce": "0xa171e606c31ea823129a448d1093772d5cccc98318f6096472163b6fc7c2fe16",
    "signature": "0xfbb079d3cc6331b6ecccc287cf87a35a7e8c705a92e6f3c62f3018cf2abb052d7ca895a30d9d2f6dcf62f12639aa89e50757f0dd3565f4160d167d3594d89c5b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}