{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7f97dff41bcb0b89c3bb43268303111a9ab7468f2c7dad51a715ced6b4415261",
    "signature": "0xa5d70839ed449592d047c7430e4fda945c9dcbb37bb889b1edfc76dba05586193b7af108ac3bdf5f8b3f6217a3506b03e597c3f9e67aa06fa6fb847ad3c4dd9c1c",
    "signer": "0x36dfc19282576d4f8087BF18aDe9806F7D7dcE49",
    "userId": "818663791"
  }
}