{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7304",
    "entityType": "User",
    "nonce": "0xabc426732500c7f26f1f93911cbdf89e02c1e37834c05e71f326e62991f1a0e1",
    "signature": "0x10e9b0649dc7106725868ceeef01691a47118eb7690e299b4983b5e4ffdc2bbf2d62dca7700a15e5c4d509985f9c1faa2b21b268e0fb7d7c4fca0b2da55d86031c",
    "signer": "0x6f20258D1188c4f08d27788Ecc9ce87B6af3913e",
    "userId": "469120908"
  }
}