{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "127591928",
    "entityType": "User",
    "nonce": "0x7f7f9f2ee46480c4b4adc0551196207b0238b4679aec0f5f24b211c902355b0d",
    "signature": "0xf07cca91ae95de67ec7817b7eeb1ee0cfc62a213414edd227b11ca7c1285f2831ce3aeb235eb13c4aa30440cc27e246211973debd07b8e86ee2b1e3eb0fd5caf1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}