{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1447188",
    "entityType": "User",
    "nonce": "0x21187f4bfcf84769d15dca217c6773f6f9a0131e2b7c623a0c1a05b0301583f5",
    "signature": "0x480e21d93c0a5ba8cc2ca678d12066a1a72b1a1cd48a96fb68e7ac721a6d6fa91f044145a7060b9697ba489788d3751975ce984d923f2f43c597026f1355e9a91b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}