{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0dc320794904977a9c4ae00e76db2d187efd34c81987db3e1c4e2ad6ddc3cf34",
    "signature": "0x4d33373c0fe97f2f5c152a9b97743bfc453a54ce83b1d03ab9fd859b70739b6732461003a27fe7189ee7ce22b453e717afbf348ce4feb3f0a7f5b4e8f32bd7111c",
    "signer": "0x67CbBb7102908f84edfcb1856bC9ED2FAF82ae7f",
    "userId": "691446572"
  }
}