{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "45518",
    "entityType": "User",
    "nonce": "0xbd778503ca4efae3ef09465d02b3703fc2c6b6529cc409d7d8ae9fd5a443f45c",
    "signature": "0x0fd46897dfff9199180a2db75a7585a9b73f614731cef08ea87771252dbb53c57644103593da2d323a55095b3b1ec2606a601d12e2088294cce7d08bcbd967eb1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}