{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "31125962",
    "entityType": "User",
    "nonce": "0x274b64049c8c45bbab332f8d7863c179f49e5815455c9fa0f91c784736e252ec",
    "signature": "0x74d4ac121fc784c99bb3fb5070401b83fcdcafc0be5ef65a4fd75f875d3c135854e934403cc0d5a4896421eebb35bd3c666d71468bc53849251073f80e1d78b61b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}