{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "678556080",
    "entityType": "User",
    "nonce": "0xce348483354cf197f8dd3797761b34c27a85ef83f93e6fb9a71beb4ce530011b",
    "signature": "0x8abee9c20e536ec471ce37d54c39a0408a75bab5155d357318dbe7a21fa9c05f554affa4b0de2f13b0d1df8849ba4a68474addabfaaa8543ddd31c8ac861096a1c",
    "signer": "0x1912FC6B7317125d52bbb01C67381C923FA92aCe",
    "userId": "763473"
  }
}