{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319758166",
    "entityType": "User",
    "nonce": "0x0ca1087cbaba91cd411502e81d4b7ff4dc03d56722e4fef6911dd54a04bc7eaa",
    "signature": "0x3dfd3c766897aca2442d45b46beccd42fa33b0d2b131fc85bea1f0b750be2d8e5d6cebbda26da403627f4b77d7a546e4fdf395ff0ea5ed196520ff9f3a6e60af1c",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}