{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152447",
    "entityType": "User",
    "nonce": "0xdfa618dc785b3f0726d6ebca027834f7c0bd3cf6849f3f634b378a81d4e476a2",
    "signature": "0x16630b59e90fe330ebb8a4db08077932f8fddc712cf8b08a0be74350dfc67ee64a734865c5d462be64e7d1c682740a2c06dad4616965730cc380cc341a08a5d01c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}