{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "893863695",
    "entityType": "User",
    "nonce": "0x73855c98cae35a3ca796ff2c9a45d3fe7f1f9b6d1a63cc1f41b955f23c6d5ef4",
    "signature": "0x773b6019f8d1fa8383f1638611bbf5704a1ab6ada1da29b0d16c2649272df1f538768945a0b914d6ff1373d1f6fa6eef597b1d0ac1edd307d11c90e4ee44b4ee1b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}