{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "143684",
    "entityType": "User",
    "nonce": "0x1ee0d62783876a8226b235560abf31b029d63e606651c1dca7f7bb0827043acb",
    "signature": "0x75f33d0cd98f98d99e9513bffb96165a664b3a0aca5301ccc0edae1a35ddd7aa759d01005636058c4e52ccf8df710c1a94ff28edaa1e2cfdde10026c13492ae41c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}