{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0xf3d50174e57cc1e851d7193cea5c0ea626f76b02138408df98ccc6ae8044c754",
    "signature": "0x670a0625fd2060a76f7f5f0c7c3716279b3293ea193310ff28ff03a1921e489664c5821f0c4215d82e01056f9c2ddacc18d0b8887ebfd4e7a0974a49a709b2a31c",
    "signer": "0xc1C84e5C06F7dc5824672906AC6E51CDfeb90aeA",
    "userId": "447798047"
  }
}