{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd7ffd71cd9f3d5ee9126c5dbe1c432263b0b5b86ebb4937b010ec0768b6aaad6",
    "signature": "0x73f4b6fa691ffdc2f7a4640282b1895104b0665f5603f2789206aafe2faf3dc624cf0b8a190c2563bd600c6c56fb18af034e167b6d2a5fb8222816d62f88dbb11c",
    "signer": "0x1080460F21DCc82D7160d2C77DaAb22a92c4dD22",
    "userId": "162106877"
  }
}