{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "976132619",
    "entityType": "User",
    "nonce": "0x133437f0674cacbec9ebbd48bd367e44b271a7d33928a8f3c673f36c17dbad8d",
    "signature": "0x063a4b34fd276e2a8bf5ebc5528b161c3d4a692b6d12e48aa626f7443678191266bcabaa16ded9f60afe5e37235918bf356e40a9e634f6ec590af4da0265eefb1b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}