{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0xaa4b275e903da03ee23ee6d40b92cdc2a63516ee2549855e4267187b1ba97677",
    "signature": "0xf25d9f031fe96c34082393da63549e5198a5f67b0fa8b9d6983a1a0e6dd31e62730eff914db6ea159b82e96513069059b8dd8a8cf4397a5dcd589533aa0431b81b",
    "signer": "0x72C3229e8a009963fcCB987460463895a2989d71",
    "userId": "109371348"
  }
}