{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "231544",
    "entityType": "User",
    "nonce": "0x85f94639d1f2a04ffd5976472744a50d8ec8fd243f1f01d72039191b4d39fd7f",
    "signature": "0x45b24f753b11cc3111dd42d8d1322294cc91b42bd6663946607f0fa40f5c3c6c12207bc7a469cf560c664ffa59abd32da46b18ede701cc48d0ef2327ef1630dc1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}