{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632918751",
    "entityType": "User",
    "nonce": "0x4daa168f4dd04671ac34120472f7f0a627285a0e4c50ec13c705e7d74a63e231",
    "signature": "0xc0182a87723eec2808333daa4e2b1d9778071925ca3f660074cc67fabfdb9cd61bc4b59f02cad93b93fec284c922866adfbb833cc29ded5ca5e2deb235c626391b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}