{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54332",
    "entityType": "User",
    "nonce": "0x444e3a780407395b830acead63fb98cce9233a950dee6aca47ba9589eb6f3cfb",
    "signature": "0xfb14f2f95e650e30af3a26a0526a5ecc030c7b24c430b5944a09053249558aa63e3ba977a6786c524e327dae0a124a642969db75803ef259ef22528a2f578bf81b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}