{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "860339842",
    "entityType": "User",
    "nonce": "0x6f2b31b2b1c1feafdef94d12251fe5f4509b20d259ea43e11067dc8a04fca60e",
    "signature": "0x7669f6c568e8af2d5daa8ac991471c6bdda4dda655c0eca0051eeb71436eec263ec4cd328e45b56f1d89148ded0fa240e8f1aedecf124fc851f2dd5a3afe6cd11c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}