{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145242",
    "entityType": "User",
    "nonce": "0xb6c48e81255e25519a20405eb7fcb44bfb9e0e54fa031b51ca7568fe067e62ac",
    "signature": "0x6ee4ad5ec6cf3a26f41ea67d4a939fe7119c21e02ca68e2f71edda3a2d30def651c9fd3b4b4b42a7df8175aa2f79b07c333420ea1a2a16dd2af127224645d50e1c",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}