{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "828747444",
    "entityType": "User",
    "nonce": "0x2327e35caf2a2306b221f73a8a3267c6e385e90e1f7343bf19c572d12503dc23",
    "signature": "0x7ce2fd51d0bfce17611ef80c01070fe556433ce255f021a33fdf4ec08a6e3615010b21884f4a3cc6a74b9a7f4fada526f51553866dd6fd2d77c51c0b33c4b5fc1c",
    "signer": "0x4Ce6a08dFD6bF54F839f06dBd83C6915C88F3b46",
    "userId": "750637648"
  }
}