{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "682217",
    "entityType": "User",
    "nonce": "0x6177a4f9c734f9912676b1463dc635349b77c686a48026a196bd9b431219a8e9",
    "signature": "0xb9e7b351db8e05bb52eeac998b8b039b57bee89e70a0c3a3cbf42efb037ee2ae3bfb649c5c3635c74b6668ba7e55624fa620e5bf67b9f8b1233b1c961e3e85cc1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}