{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "455179560",
    "entityType": "User",
    "nonce": "0x91759faaa27fa28f20171797306b3403a1505a5cd2f1cf8fc53efed038bdf070",
    "signature": "0xe9859597ad8adfc4103726bc7e00409ec002b7a0df6faf4d76b1f657237b9f314094e4d3788b160ad70e7672b04110355c5d60bbbe2afc5d7bb69139d7cc620c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}