{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "211206",
    "entityType": "User",
    "nonce": "0x6909ffafdc6dae375ed9f46b48b424cbb19ad72eac80e015929baf650774f81f",
    "signature": "0x948ae9ef558d025a61a76df9308261ac05d89f2c867b746ad513ecad55633e283669352bc2bc368f20b20ddb62563bf2655fbc72961d8cc0b4d49a59c457f4af1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}