{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "786997870",
    "entityType": "User",
    "nonce": "0x9e1ffd6a6ecd8f0536c4758de70ca262379162635e5f9ae5c47fa6c4b0764ec6",
    "signature": "0x495e58920820129b23d0f36e93c106ea1073af3b0d23c580e5dd1326205d1a976ae938c1d499de02d476114dad32976e50167b9750bea6e38c2ad05630bb837d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}