{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152450",
    "entityType": "User",
    "nonce": "0x1ce7cdcfba5167bab2edb51f7adbd6c20d6f2f9565d58d1ec3c4ef5e64681a1f",
    "signature": "0x97e4abf0f9588bab13277795ab2da0b41c8c44f0ddaef01488ea0bbd22b665c403c545c2cedb1bf5e80a9be3ee45fe52335c12afc6331481d0e4c324f6ce39491c",
    "signer": "0x3650a89287dc01b8b035442A3E9e1fdCC1CC2324",
    "userId": "572305760"
  }
}