{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x2b077d7534592b7ba04c68c41c1d0d37c2eab2c95063209365b8e33ed4109e38",
    "signature": "0x68411f849d8a09e037e94c6cae5629a8501ea65fcc4fa560a916bd2bb0e53127003afcbb2149a0514725ecc5672b4beafed5f40702f2d0a46dab2cc23d95fce91b",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}