{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72473714",
    "entityType": "User",
    "nonce": "0x786e78b5d1598816b2f6a80d79ebb3f80f193ba023a00c7e0f2b35a78067f5b4",
    "signature": "0xb146d427c1aab176a9fc3b87f47ba9638e6af57a38281af346f92948b73bf6f6750a297095ec3f96a7cddb0100304c921fec393340362b4a5a0986fee9572fa61b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}