{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16363",
    "entityType": "User",
    "nonce": "0x7db82ef3a22ee4d67790a9982acdea09111ab64ecb125772f788323daba87e27",
    "signature": "0xbc051b391fa9f7c5b181f474915b6a6b5cc7a9f954852ed4ad5e73cb5cff0b191f2fe7ea744144478cf5149bb5a41e4dc2c5450b46d17158ce372fc2f5a9cb971b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}