{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x17acb3738eb81a59ed9b27f1fb163653b09a42fe6a9d2a70caf39e4f3d4a57d3",
    "signature": "0xb287be570344ca2d5bd6fecc70b39b532d9429a2d194fd6cfe9e23b1cf753e84647c851236d9036ee3554b1940eec239664aeb5cf33ee77450e8567c83042d041c",
    "signer": "0xDe538Ca1BED3a78494574e2d57a4aD691Fe9485B",
    "userId": "826172471"
  }
}