{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346848",
    "entityType": "User",
    "nonce": "0xa6ff2744c2c17e6771f4ab8ca02cde53f5522f3eea80f024a2e82e9140824bbe",
    "signature": "0x79973ca9d843cc6e4de0765a5d61884058d8d98f584b2303eee5b0c82eb2958c232e89e1f38274c6624a54b4131b62de31caf45b743772f06d3fb129267653a71c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}