{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2684",
    "entityType": "User",
    "nonce": "0x96e3259a2be501da1ff814224e35eed0b1959974e3a3475a118346ddb73e9fa4",
    "signature": "0x3be2cc543df2c16a6b96c3309df92dc229295fa780168a667efc4ed39f1d24ac45f24bc5b08e4e4f6961e373b112961cac1fbf777ba5548eeb973dff5834c9721b",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}