{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x8faf8010f43c1ef34ee182f89e0598a47dfaf18fc88f0f3e6ce28deef169b668",
    "signature": "0xd1cc7fe90756de86785c27c5e58223a6d2950d921da938c9a1bbb160d481509a16ddc240224d9d2d6ee197790cb9fd2fbd1d175022d821e8dfefcad3d4f3f0921c",
    "signer": "0x1481F49fD2f6524D8CDC0089b13bbd2e6E9106F4",
    "userId": "231243"
  }
}