{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854614078",
    "entityType": "User",
    "nonce": "0x33a76c87a0c9df152d18d899170ad9b0b283481dec3b4f15deb15fe999077ea0",
    "signature": "0x8fe365b35eeaec7b4f4f88faff21fa11b35156e6320b07760085ee0abf5cd40a0e4cc754a491535077a91e7ade51b5bdd49c3ecc636aeda0d37790022df75e131c",
    "signer": "0xd648B38B61b65e4F8df57D4EE65560D8DaacFDb2",
    "userId": "277314120"
  }
}