{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "685369600",
    "entityType": "User",
    "nonce": "0x4ff009893eb6cbe79b3cee38d0ed08fcaa56e6652ccb15e74d7ca6dd9c780160",
    "signature": "0x8cb964672f99cd44f9e57f90aa1caf2aed07ff98ee8d2f2adb433ff00012f30b0eecd889b82ee682ed13b05abb7a63ea9fbba76cc11ef790c0e8776c15e52c7d1c",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}