{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "660696906",
    "entityType": "User",
    "nonce": "0x0315fe1ead6fbb41628b108b7779e3799fc72e74f75df4aa890b5af0acb4e76c",
    "signature": "0x1f558aab33a06bf4270c966e893bc24e15438e2ce07b14f26e98bccd2ee58b587b54b7f18fdd60fc58c319de4621b0832b61d9bd9a308f17628c83ee590459a91c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}