{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "784583291",
    "entityType": "User",
    "nonce": "0xa1cc80f14a10c0b949c25becfad1b35689302883ab5c02a459968ef447ff77bc",
    "signature": "0x90404f0819d05fd28ea478ae272fcde9244af29d3ea23a4746d0979a76b96c4c2c3b1ad04a90d393545281f6b3f9a1e02587d27d6335999937751ffc22f84f811c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}