{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "780141",
    "entityType": "User",
    "nonce": "0x59c4650849f4f1ebbaa9af2591b20c128640b903321c6df723e51d2f8af3ff4e",
    "signature": "0xb5048f0182ef8b52927506c547dfe53d203d4ebcafad82a751eff9a37ee2be607364f2517f0a8c586c72ac66f8fc23e2825c097ae9a5d618b4bcaf7004af453c1b",
    "signer": "0x28b9f9197fB6fe7356F4228d71DCDD1C6aA3C8c3",
    "userId": "252398720"
  }
}