{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146930",
    "entityType": "User",
    "nonce": "0x273b9880cee97bc9644850f1311fb47fec6aa36b40959b73dee89fc6f18f8c41",
    "signature": "0xb0dbfa2d4581c38b0baa68618c6747ecfed5a607168c6a708623f3c58da39fae0aeadff807559446146b741e5f47b97e801bb496c4389c3fe12dadd54ce689631c",
    "signer": "0x5f0888943c5151AD92380E0b8bae6e39110f041E",
    "userId": "837012197"
  }
}