{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16020",
    "entityType": "User",
    "nonce": "0x6acd426b97de2079c298ee93150373618a20923b54b388ede8a3b5412b6b1317",
    "signature": "0x8311df5bcb0bd895ed0aff33b9e63fd638e15cfea87510f23a7519e2d33508f8361c5aca085493237d09fec4a6b8a9d7b80b9268ebea23508d6377a4980ccb651b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}