{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc7de949694023beae04949921d0b6860871bb30646a0b3949c43f913b5db6028",
    "signature": "0xba1296d804b646b973fce225e4770f24005a0be074d0e138b5e90246f6f4353b5c559b8eff6195de09556098d1952dea54f2ae78785f3b0cdcc28d64721af1041b",
    "signer": "0x3A0c2D4B960b98CBb328DfC55610EBdCed1437E1",
    "userId": "793216745"
  }
}