{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "374318762",
    "entityType": "User",
    "nonce": "0x207d670035a7f36bb0e0aa6a9ae84a931d61e5bea5e1876cb368428c55646188",
    "signature": "0x4f03e43c778c37827ba92decd6c0503f6d3ff4d18d353197f1b8836dc334c6fc648021a6121a9697883b256507654dc8bb94e9ff69cbb51817f41337ea300a401b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}