{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1878",
    "entityType": "User",
    "nonce": "0xf25da2e117e964d930b53c8dd350113577725732f00f01dc3f0deedd7dda0e66",
    "signature": "0xdb29493853c3c5b32f748d6385db92ee704c7a91d6e45d7f98c32a999cc80385477420711ae66b234685ddb342acea15501595c4762b5684dcd1f419742a365a1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}