{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x77dade09c92ae5502696edef22662ce7b06bd3a3f89697622ef59b84e8e9dc27",
    "signature": "0xa3949753ed21a157c944a8de416400ff93a412979c9e8960de8fcf613e1f444e459b26f75874d2d6a1e2ffe0b6ff7d757c2fa53f68bc8ee85bac38f1b3647c741c",
    "signer": "0x0E1419Aff1544Dde5c4eebbCfA208Df83ACdE40A",
    "userId": "564626302"
  }
}