{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "487464",
    "entityType": "User",
    "nonce": "0xafe4c5a964590a12245ad43a3ef62d979355f6641a9c4fc44e407b4a10187d55",
    "signature": "0x303e8b24c160f855d8f8ceb8ad95a4f4222c29d77bdaf3c35720960c936c33fc68cc6ac7a540a3959d813a86592bab4a913f379505de1d49b60a5b5116df6f101b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}