{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "392974119",
    "entityType": "User",
    "nonce": "0xa2a5c19a9b6229870b7306de7fe62fcb708173d10ed75ad4cd8ae77f01887626",
    "signature": "0xff38e994252b87bbc00e0b65370e692adbd9995cdbc3d0226a02e88c0097d2b91b83e69744b7988b68fe743b6605cf5e78ec1480643e701ad72fb7a6f97b0b391c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}