{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357010",
    "entityType": "User",
    "nonce": "0x4d6d9e37844a6dc6d3ac99d83a5554e6b4a427bca401ef7db3f8e8649e14151e",
    "signature": "0xb413b4e1e7b1f07b9525c8c149883b093c70485cbbf4d7f315ea2865936f20967e7ded63ac98597dcb2f5155ab064380696d03a804cef181ac02bbc1790401d81b",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}