{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf9314d933537c0a896282da579d137e9ad43de64b0802148d11ba15defdf64d7",
    "signature": "0xda09a51dd8554b284d5203fd6362f3356b8c2c4c94436e66069c64dff7c679a320bad596a75ecb18fb8610b9970445db43d8428af6e6991be02592abbefa55a81b",
    "signer": "0x63A22BAe15BdDe8Cc2d6d69441cdd9951e107352",
    "userId": "68904056"
  }
}