{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "337206",
    "entityType": "User",
    "nonce": "0x0f988304e9eab6be9d367d473266f0ea8d7debc821e2ca7530d1b9864b165003",
    "signature": "0x7b829e26552a94f4b16b66e936c0985c60d64d800224440f2629d42eca07e17d182530629599ac665f9aa5399233e4f2daac429f50362b12a3b821bd1f3883f21b",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}