{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x43984d0749ea927bf5ae25e93769eb7921648fdc4cc38877f9b2e4ded5082cdb",
    "signature": "0x124a0f29ea1ee48f2a996d96811d3184fb247fba375dd4c6cf8feaff243b8fdd53eb5099889058ac175a69636c0cfb07091f57e09fe560c5f6caf9ee0dd5c51e1b",
    "signer": "0xACaD6d6FaC9538774Dca4008652AD67B38a32B53",
    "userId": "248719791"
  }
}