{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297464",
    "entityType": "User",
    "nonce": "0xe88c75fae91b02534752479fb935227db5d82d81f027988a0ebc3c45e0069f89",
    "signature": "0x8cbcdd73a27977dd8ac751782422076930131432b5bde23540a8c9b138ca9bd06a44df9d554953d462a3986a59ca2b1a74468a24f923abc479dc1473d66897401c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}