{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854498636",
    "entityType": "User",
    "nonce": "0xf15183484f208584c8f6da61e063a65352392aca18da1bd74b5af74f3f45e044",
    "signature": "0x906c51340b0208dd96445315abb5d58d609d61512f4ae6b1767cae20e799009105014bafd7f84153073c844b5d050849c17723110183f2b78d0023307f051a4c1b",
    "signer": "0x1D0c500EC847246923045cB0a285242A93723f30",
    "userId": "302385956"
  }
}