{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1683",
    "entityType": "User",
    "nonce": "0xbd1636e80814bd586c0fbfe095cab18e96d2df214798a1e051a48a09fb6712d1",
    "signature": "0x77fe7c044e12f516e8417876edee3bfea566c0ef3603590938161298450d10d224424da6f356b208b78aafbeb70a021b5d239ab886b853eed4af99c2b01b77fe1c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}