{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x04581e47f886e06f516dd47d858bcd6c5d82499625ca99b6374886f4f7435266",
    "signature": "0xb6d5468f99ec45a05e99b98e3cf541baeadcfee97012836b6423bf1d3d2e76241670a40726f800523c0dee84e29af92b1d52c96aaf91477c0547d1ff4dfd661e1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}