{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395602",
    "entityType": "User",
    "nonce": "0x2d3a55e77bb613fcf79c378b194632ffe9a4e879786af5a305047bc0dffce4cc",
    "signature": "0x8fcf0744784130eee4917355ac4ea8fa874af8bd333fac1762540b3aa6311bb805a6c64e20aa7603d1fcc182dabb9249e1c30ad9de2ac0ff98f04116d5c2537f1b",
    "signer": "0x2298E32DA0e7c080878c6C1eAB02B255510f0Db9",
    "userId": "570472437"
  }
}