{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "931387481",
    "entityType": "User",
    "nonce": "0x2316f235b648ad414fc599dd33cf292bff7cad52a113fd67a42ba0be14479de5",
    "signature": "0x7ccaacaa3bf68bc860bd5d6c6cc6c53b1bd99d6995855ae61aeec5583a6f66b079b8c0cb804425c03fdcbaea7b1fdb0205d23907ef033abcc91929a3d9cdfff81c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}