{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "950751701",
    "entityType": "User",
    "nonce": "0xde728a7a32e2e38f94c72aab452fe41f4835373741719bfb4d347fdc40f1ac6f",
    "signature": "0x57dc99ced83e3befb2e6810efa276d96b1df2dfe838c1b0df26d70e53f08961b6b16079591281c0d711af36273386f0f5eca6c6ec01a00fc0185c0463372deb01b",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}