{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0xa501692e5d80fb2c2cabe3d21a2f6ed0ddf0b36682e5195338c8eb44289433e3",
    "signature": "0xc5b8eb6a37ab7a4e2e4a5ff806aadfed1ac0530803e0002ba817edb31be32fe505a0360ddb2ef0a8d12f3007c4163b01703f746de259b0c14e228c388e3fdedd1c",
    "signer": "0xb048bD61FDCf327C9a427cdE23bbA16700E0bb74",
    "userId": "850759075"
  }
}