{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x27dd68c22fc6cd90b266c2dfc551b6fdb6ae2be9404f5444f3a28bbad7a2320e",
    "signature": "0x2dd80e5dd0e742b43a13a2a4d69906630f0245b8d31ce4cedb5e853c3e89c42d3f8635e66fea4a8aea1094c186ab1e369bbd3d2701c76292791b5873814e59c01b",
    "signer": "0x8F69fF74321c78adeF63B1eb333425775298D470",
    "userId": "365827295"
  }
}