{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc13318d06a3544d53e48b328fb14d4bf7325deaffb7e37c7c0a83cd140b8703d",
    "signature": "0x61595be1a6884bd27f887401196c6141b2981e6222749bf9d18dedf722e75a57313b652762ad9297a283c9014ed1f4861ec494329fbeffe884f35241b01cf39c1c",
    "signer": "0x383feAa38418D4C66580dBF7925bf78A717D8996",
    "userId": "584977222"
  }
}