{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333715",
    "entityType": "User",
    "nonce": "0xd93fbf669928d8406d8b752adf86ba2fb302904b627368eb47821d600c3fd31e",
    "signature": "0x5a6d877bde324d65fa8a2078b801e8a8320665de8581fc99040cfc580dc2ed876733647f669716603fcb09d0425e8695f2b2537cd8d62f82768eb9a825a5682a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}