{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129076",
    "entityType": "User",
    "nonce": "0x8f0c1b61b1be0b778ee44d9e128f5387b45f837c4458f191b9231947a0588def",
    "signature": "0x615ba7665e606193721c107a97a058a41281c976ef4527798b8535d1773f3ec71fb42ad051321505b5693e199430269f20aa5472bba6f0803d5f10a64abf45321c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}