{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "416239376",
    "entityType": "User",
    "nonce": "0x81c385284ee6a5c4b2f326a6dce15ed75282284ba05692965309b7b59cdffd9a",
    "signature": "0x23a4326f9b11f046d0d3eb4e011d02e5db174731494af059afd5dc2467d2002845a0ab62fb803c9076b903b33ed28dfaee4cc4f9992eddd4ab3fbbc2645780e71c",
    "signer": "0xC1c390791Cd8584Bc0D056AdDe5c3D747aA694d3",
    "userId": "395219571"
  }
}