{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "774076",
    "entityType": "User",
    "nonce": "0x8da6c1054036ed08d8459ce87bfc35b33b1f1e82b3d2b484bb890a899a069b86",
    "signature": "0xff05bdc3a1746edd334caa02db4760b1a81cd63aa6816ce75142ccbe2096b63a3f5c3e8452bdd5d7b1249292b1735954c5d1363c5596d14538aa771478484c761c",
    "signer": "0x195d9eE11400245E841C02c4b4288a90A8195e91",
    "userId": "103785872"
  }
}