{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7645",
    "entityType": "User",
    "nonce": "0x03314b5866cfb51aa2942b771ccc5bc8a1199e44dbf130a25cb85ce70ec0c88b",
    "signature": "0xad44f395901875dafad25d82dc4cc9e15f94127c7628dc6b24da240c6ae6640f77c6877e0f140c779f2d7d13c7703f6fdd58d314471397dd6df2a4aee002d6f61b",
    "signer": "0xcc8164Efbbe4ed123B8689622b411c154496e66b",
    "userId": "60031"
  }
}