{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "35251",
    "entityType": "User",
    "nonce": "0xaa955e8f0fa0d4f28a730c7bdc4b7fba7f80fd6d12c589c3c6bf1103e4e31743",
    "signature": "0xa555317f4f5af10e4a9f5e9dda3df9e1c0859d9a24bec50b0fb3398913e6a3994fa82cb36be835d4e49b4b6d76c4f9ef39f2c95062e2a822d1af5f4a6c6020a81c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}