{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120328",
    "entityType": "User",
    "nonce": "0xab71e06e380150f1250f93e010aae59fccd9bd94ac9a0a4a429cc6973d9ad3cc",
    "signature": "0x3a4d7b0296e5d7eeb771a78ffa08673e6086c232a7160f61e98b45dd265d0fe551dd8bc6b6f4dae04b08f17fced7029f9ea2a5dac0c9d964a8b324540972d48d1c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}