{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1640466",
    "entityType": "User",
    "nonce": "0x28ae032b1608192e845c2f44d9599b53d5059d7092df13d2959eae99da541f4b",
    "signature": "0x5c3207ada99f0e9933bb018fc1d0cbe9c877413466b087ee432d1320ff26ec6e7431af2b6444f908ee13cda08cb28edfd1203f7d985a1a75294eeef93f9e26221b",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}