{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "737872723",
    "entityType": "User",
    "nonce": "0x863024744cb3b355b21da822cc9b4dcecf2fa91b69bf7bbd4ea5c45bfc29c133",
    "signature": "0xa7c54b56c8f7bd9eeed06a3b35f0ef501c2592003d08fd621ef15517a3e306c20dbdebaa45a679e0666f0e88723ef87d78b58597351b88ae2d68b86bdbb5ca0f1b",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}