{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1725287",
    "entityType": "User",
    "nonce": "0x420324f98a2a8f8b5e8d5767a50c4c78021e17f02109db772465d1a80b49ec06",
    "signature": "0xfde8dc4593b650dbafc8f1fa95081236abc3c163089fc1735cfe98ddadfff0c511524248fe2a93d17cacb4d676e6771f84a55bec790c937d7ea590bc0a6ce3121b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}