{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "352914791",
    "entityType": "User",
    "nonce": "0x105e9ba955c667e964bba19112602394fcfd2f8858dfdf2a5ff6035d448e86a1",
    "signature": "0x3d55bb8538ead72156de04f8a0d2aacf41e4dc00d605b0649dc91c112b84922b204715778e017ed69253e4e9e45964cc37a0c87a2f3844083ce2221a8f7ea0b11b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}