{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52872",
    "entityType": "User",
    "nonce": "0x45830599e6c5f1bdaae595658f1d002bb2b9f4dbce16444a44ea74a7f1503fad",
    "signature": "0xbeaf98971200286f0e77b51e0cba0abfebc9f7fb41bd96df9fab25d2908adcb55eb49337a63d042d52d48e70494ca80d9f1cdf98c8f66ea98cbe5bd684af9a131c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}