{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63875",
    "entityType": "User",
    "nonce": "0xe5641c8b3ebd2b08c06351b0c3b94149436d42b03b3a0b5e08f5fdb95ba8ad21",
    "signature": "0x72a0fa91d2d2a6164e553a6f297e7ceda1628efbcf11dca923eee979b5802962311dc3d2360701e41fafe2e6f49e26d5fb53dfd1beecf7244e664ed377c4512b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}