{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146791",
    "entityType": "User",
    "nonce": "0xf9973faa5325f96c3f4371ee1728e14c53a8d9f5a8c20eb5109dac2c87221fcd",
    "signature": "0x4621e10b6e315b83c12c8ba8f32a197da1e3fd00bd00b61941e71ae15166e2a92016b21923d8e8f1955236ca8939ac88dfc787907936eb94a0dcca73bc99f25e1b",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}