{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4f366fd815ab3c2c3aaceeef50ce6e0ded83a9594be5617c01967fb12f5d1b65",
    "signature": "0x1414716b2433fb6f8651dd96b2a7bbc5630accd380fb3b66978d3d68bd0c2b333dc4347532c9d1ad7a042af2c161f9c5005846e71c5007cdc5e9babb9d73c7a71c",
    "signer": "0xbD56696c01202DC6844dcefb2Ef5a0706C91a782",
    "userId": "778711841"
  }
}