{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129448",
    "entityType": "User",
    "nonce": "0x589576118cc3cafa368a00316c63470112f49470cae5a4dd1cde73894b26ee8e",
    "signature": "0x68ff382a836c7f0f38f7a9407dcfecfff735a316016ffb9d4769e3ea6d132de142961dad1709e1d06c696b7fec1be3a381786f91981d9654bf0d4bc0d4b187d31c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}