{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "696175",
    "entityType": "User",
    "nonce": "0xc7545436e985215a4a653a8bc2a80ecb77f602932a93789fc22e5dbfefba2558",
    "signature": "0x88e71cc990904ab9a28521a5666caf24db5370a630e3ac037659651b59bbacaf306c31aad857a80759a8d280a1e13aa31f591b3f5ce2c5e5122cfb3e6c1db0491b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}