{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x624f681cb34875ca33e7de670e0752576c66934cf6f053808fc80a483009182c",
    "signature": "0x28fa7dbfb71cf21c571301b1836355365d95e7279f90aac1911e7fa42908dfaa7640657a4954755348274758bf55f20aa5a4b461f00ba1d5cc4e2526fdeccc411b",
    "signer": "0x009aa7b49eAF9a76b4b0e1D3C0ef92ba4e8ECEa4",
    "userId": "350390967"
  }
}