{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81541",
    "entityType": "User",
    "nonce": "0x06f824833c38d6989c28cd969ef360e3dd7324d4b039c83ed4989afe3e54b86b",
    "signature": "0x04dc1288a2e94e7efaeac6784bf63475a8faf9364f76d4da0130312de4c9204b6c8511bda67030afd33af43f52b26fddf6702f172ad414422c0ad66e62870e4f1c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}