{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x564a0737e989d7b45c60a4449e638d22f3067e8af41631eba513ce4956808be3",
    "signature": "0x5da85a0c34e9c3bb99540395bf10b85c65306c61f0be7f5c01ae282fc4896f253d887f400a2d8eaf9eecfaf27c6f4d9dd9a3e3cbd1238816721174103d73512e1b",
    "signer": "0x89C95c0d669B68DA003f3053c605166ebd6Ef546",
    "userId": "644104231"
  }
}