{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0x6931b68863ae981f9ef22f31504ccd1d4e2028b3ea01ec2f1c398ec07a78c55b",
    "signature": "0x0a4e457046b8777617f47a190283d872751dd0ba9ecb39c3177bad2cc4346e853d34a0558bbffdeea3cfb06264cee7967e1ba6b32b40868de88afc8a0f4e84bb1c",
    "signer": "0x1c4Ee34565eE3A8304706138026D7518821F356F",
    "userId": "584804802"
  }
}