{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "274298570",
    "entityType": "User",
    "nonce": "0x7db70c47db24f291bf00e76e414d405af20518269a052a4830220e38f34d1198",
    "signature": "0x17e3f060b424e0f9cd92efac96810b232f947502c11c40ffc78c8d48ff4991351fe1d7843dd6bd6a32d3c301b78f51fab0df4c60ecead19819492b82cdb2c10a1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}