{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "641163",
    "entityType": "User",
    "nonce": "0xa3ee35af5e0759310d7365d5c35805b24d55ce023c6361243e5dab083a704309",
    "signature": "0xff34e78b32351d896c3d55ea793a27708c9179ad9cadd1e300480a2dcda956b75d85946cb3ecaf3607e4cc549485b34717fc3391b815c337faa33ebc3a25a8981b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}