{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "745382175",
    "entityType": "User",
    "nonce": "0xae45dc179b302524428571690be3de84165bf9a38a2b68d5ec74abd5a63044c5",
    "signature": "0x2a4aaf3e9c0bbe06e37ba3d4b60d44080fa00263125fb5eb891309b294ecc553669131d46dfecfe54ce92d077201cd379451b28dd49e502515598d0c7f01cf351c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}