{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355113",
    "entityType": "User",
    "nonce": "0x8d6525a70b54dc7090b87cb9c1dc834b1d30ef025e1eeb9f12e68967eaa1d480",
    "signature": "0x56656612b87ba2bdbd283e0d5c83a8a83a2ec98766d2b67af65dbf6bb6e3b9857866da3df2ac5bb8fab6651b56842dc7f4f82971d232a37e1e0ef390740239f51c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}