{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89963",
    "entityType": "User",
    "nonce": "0xde0269034c783e88554377ad0dae53304f09f858ab50cc8c6f612ac9b2e7002c",
    "signature": "0x3b9b8bc4000fd864b496ff44e0306acfff169de491e37f6c0816a12f0e3d7c5e0c918f9fbf1f64b9b223ca275bdfefc71458f977dcdea4f5b0540fecd9896cc31c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}