{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe8cf48762b3e84bbdca23f492c0f4f2faaf99db2fc318091aef9677603c5a9a6",
    "signature": "0xe8be204e364ff7b78c24f0c1da5b7595aa35876aa1b0dde22a9970f01320ae61632731d30f332cd655dfbfca5c90adbf2ac178387e5931fcb45ef0904827b2db1c",
    "signer": "0xc498D1d2e4FF2b44A42CB1F2C0F1A3d0b8837d7C",
    "userId": "559535665"
  }
}