{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "596750044",
    "entityType": "User",
    "nonce": "0xc3bcf1edd7b19d087eee8a3812ff59da01ba08f274898361d5297c14d7217119",
    "signature": "0x80134cc8064dab6ded3cc823fe867ec237df3e7a3f11c5043de130f85ad4c883699f9226c5461372354189ee183e65c2a2d03759ab8229c01c1ecb8c271bdef31b",
    "signer": "0x3D472a01Cb831ac594835ac6038A4346E2A22B94",
    "userId": "327343"
  }
}