{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51842",
    "entityType": "User",
    "nonce": "0x4133dd3cef5e0cf71da25ede5489ed74405f31367ffdf24f9f01def0f728967b",
    "signature": "0xc8672ad29ba4e457d5e0eea85b704b7859dc0935ad771a9aead6dba5db29537550658d36ccca90eb1d27fe8ea60400a04b8274d0c7f243b76dc9174778b8a5f51c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}