{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "868248368",
    "entityType": "User",
    "nonce": "0x7441d4fa6df74a622d69939f3618634a057523d3ad0192cf839e09eb5219be29",
    "signature": "0x1be477cb8810fc832d3c16f6a076ce25b8fa1424a44322fbd7581faa96529e5b1ad6dcc08bd73324245578e84f9c88a93e66f9e854df977a75621874312151381c",
    "signer": "0xF5Bf60B79701e25bA06ea0277AB8237aA11B3eF9",
    "userId": "651740741"
  }
}