{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbba4b99ee0b2c3326a1342c74780ef98962154345e7617222e11a597e86bf7d3",
    "signature": "0x2b9a3d97a9c6016b519ceb313ac4fbdde30ced6cea3a43cb97ed3c5efc3a3ef30db711a53d987d0db69550952dc9c15703ce5168c28ddf8d5573351f8afa82621c",
    "signer": "0xCc6b600b848D5F9Cd674FFe0cF41bE2B9B2d0a12",
    "userId": "428975980"
  }
}