{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335392",
    "entityType": "User",
    "nonce": "0xbd6a5c7049318efef024c2b520df03f386a30f3b34c9d28794ef788d00cc5ef0",
    "signature": "0x6144f17250d931d27b92794aacd6fc3b179fc8fd6656d5b8ae7153269c54ce4939dfaff285a94364bbbc981abd4b2ab57f1b93b7dc50ebd0ad6d2eca2e6bbb1f1b",
    "signer": "0xa8Ce1a8d6d0b662859275Ff782975bE537E57088",
    "userId": "253056701"
  }
}