{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xf2d3f6f91581f9f0800e7beef9771d3d9b95f2ed43d97d24499051d2d3485328",
    "signature": "0xe3d62660b2d52ac3d32cddd46c2e54d4c169eaa707dea425c3e17bc5c2ae41cd37661b0af7af62e63970f525bc38fa9d9000fa491ad87a7f0e1200de969f9cc01c",
    "signer": "0x9D360ECE27645E249fbb45fC03AeF953A81031Dc",
    "userId": "579726392"
  }
}