{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "655291147",
    "entityType": "User",
    "nonce": "0x8806e1b6b5bc37c13f6746f5cd91b70d97ad20edc06e62023248f4a43da2a8d9",
    "signature": "0x9d231321452d11c4eaeda59b47acc10852352f156aae7aff925912500cf7a6491e2747ad5c283683e0275eb7883426e416feaaa4a98f1269ec33645af6ca22fd1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}