{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333438",
    "entityType": "User",
    "nonce": "0xde9c7d168a747af847e02bd3cfb674714f133f9f8bca6fb5d8a78b30cf3cdf11",
    "signature": "0x8b79809891d202db91f50a9971b9ae3c8816eeba1925c0013d4c6cee1dcae29d36ff0f74aee1e362b5135018465826e318f9c27c7009bfad1da3a06220ddf16d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}