{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141863",
    "entityType": "User",
    "nonce": "0x1f5f7971b9e3c5da0d4f3c3d2fc80b91699b6b100004030da189daf44d52a280",
    "signature": "0x59f977aad214e4ba063ab48e45ceb0197cdf7b3f3c349cb04b499f6274e1498a6f52f8340c1794d1281dd5d4510ef13dd36cd0071be16c013a76a77a071ade291c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}