{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "815915982",
    "entityType": "User",
    "nonce": "0x61e174245862e80e89d9003a25e7bfaef3098b61715d7a0610657de83a6b5d78",
    "signature": "0xc82b70882882288aac2a2c648965463da87ae2b94b843eb6c73731e90f8ebc4c591250ab508de5a0e50f8534847045014a9a836f244ea266bd1a0a23e95fa66c1b",
    "signer": "0x5c51216FbbB9B7A562f11267f91f72A7be1e8DE3",
    "userId": "105826"
  }
}