{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30263",
    "entityType": "User",
    "nonce": "0xc19e2caecf4e75cc4595057c1e4d50368e8a3e839a4033bf2ef8481e0690fd29",
    "signature": "0x2fa6f4fe554b71d6aa8b9c7f04fc03b2d1901e3114c04aa239d8d706a8859a7106d3ffbdfa8f266319344a0d796e7ae37a940b26f9428e7c59dfeed6a04d291e1c",
    "signer": "0xe3e4e5551A64fEaDc2a8518b64fE2fF7EB6aB2A6",
    "userId": "502392634"
  }
}