{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882304",
    "entityType": "User",
    "nonce": "0x9a486dccf23954270d69a72090cdb281f5d346b12a725b9213fa0a074cac1021",
    "signature": "0x3701e42d9e3a89ac11173fffb80034ad7e31e437d9b238d995fce84607e8fc3473c18bcec77727ad5b484782d2ac670437725bcb951cceb1af542cabf366c3be1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}