{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdecf491748e6f84fa59cd163a8aae734febd6363396d6835072f068e8922a1df",
    "signature": "0x419ac1dc7c7a22686133679912927543cf2103dd6dee54858cc6108c6d99ce535a8f288d255b6eec7402586fe692b22a94ce9f72da9054199e0a9e5d3727dc541b",
    "signer": "0x616810C6C7bdfF44008229BBe24fd212CC6d62Da",
    "userId": "822716103"
  }
}