{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1af3d5feed795d82cd7352fb0b9d463f8bcda7dc94b7e9fe1450606d648750ce",
    "signature": "0xf45a04237444b186ce4c1b67aba4bd3ecde898fb3c143481c13805646265bcfd2203cd59a5c1c9cc4f28a607665f2c85cd6adf90104d84db7ebc8ef9dc9e120c1b",
    "signer": "0x9e2521FaffBd1356fbEC0f30529b13fa87f0AAff",
    "userId": "852557974"
  }
}