{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0ceb79bcb753f0659ffd3eb7896d71cae25d61c7cc6af651d4f7a6a99a1d0cd9",
    "signature": "0xe10576b3f0f056ddd044700195cab9ee79db6d1dbf4786b5928ecbecfec650452fe9eeb49444ab9e9c390a19cf0e805c9b188d4c8b1a67a95160c47548c2befa1c",
    "signer": "0x52BAA98ee831ee3079B246db314335Caf4c7EDFB",
    "userId": "957487527"
  }
}