{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x9a2355fb446b365298e88f037babcb3d07f2e9b8e1b3b3026fe586e0aae36eb8",
    "signature": "0x12e1862d8e1086cadab6064416ef47ac4e4b703fd024c86524fbb06add0433b927ddd5e1aa50b7493c28f44c8f2aae463053e50d587bd2fd52aea8aa9bc871a71b",
    "signer": "0xa0C10F709D3c5b2b5FecDEA05B821Ac58bF0c782",
    "userId": "641492277"
  }
}