{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2f40b02c8f5f6c96bf5f9da8ff1836011d6477aa787580a793823f9b93f19124",
    "signature": "0x8b3be30c06d2535b6e0a5764cfa39c576d21ee8a2826f6f5a14310c2d66b6b304c7c69dfe7cb31fe6297706a08e5b39c544ca9f8a0ab6c0272f5c871ce8fa7961b",
    "signer": "0xeC7159Dade2793856fBa420d13148ef6034953BF",
    "userId": "304460182"
  }
}