{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63445",
    "entityType": "User",
    "nonce": "0xbd9b5f9ef5c80acb746f7151c14aa6b4c42bea1b13d06da9547537047dc4ded9",
    "signature": "0xac1fe0befac58cab4297473df027e676486c802b8d6c619bb17876722e479a1a1fde70b5612fea0ac4b412ad78845a8f762c8855ccbba75647c569420625e6631c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}