{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "956403",
    "entityType": "User",
    "nonce": "0xb3dff828be154fa074a1042a253ea2c3358f8a859eab4c57ab4a885de234cd91",
    "signature": "0xc5f5e9ce69a95ccacc65052884d24d0743fc95cbbf51d2f2bb3b2f429182a7eb00c5656e34d8c93757ee29cc8aa91c565af899c4d74dd14367cf556295017aac1c",
    "signer": "0x9b1a9d02F213F5C768F11FC832194b5cB665E056",
    "userId": "418702748"
  }
}