{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "915408824",
    "entityType": "User",
    "nonce": "0x8160f14c02c4347a587a92709c6d5882d25b3fddc660a3d57b6fe646c95bf583",
    "signature": "0x5478e28ba9cfd572eea90a5c73d0eeb1a520ca328c9a78ac2201d54000422f72400bc9ab7d93128d8a7b9857b0387040b8c5fe88f750a63cd83316156611f7be1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}