{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67517",
    "entityType": "User",
    "nonce": "0xaa42b0eebf5ca7c4e50e934da6c8d6887fadbea12b5e48a33a8e3cddc9aee4bf",
    "signature": "0xc2a8b446ede487da85266ff9cf6e8d41938600693fc2175bdcea6fde6722ebd63ef50e474bbdfba9a3525501c7cb96c66a6925cb13dadac329920a87a2d252c31c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}