{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0x1161bc08c4bcfc894146431b4ca74a71aafab7ca60fcbf1ab365bc72d87f8499",
    "signature": "0x3dde5bb03396a42117ae4a0787b9c7cc17e15c5fedfa04b67c5e5663b97834060caed601d4885832076ba0c3c6de9e67dab3ad64946c6efb7fa4e38fa811cfbd1b",
    "signer": "0x2b012Ef37cb9315271f0AC801DBbec07c0D4578d",
    "userId": "506789556"
  }
}