{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "788740193",
    "entityType": "User",
    "nonce": "0xafed7821c8a14d66dc5549be75098409bd2d6bcbe2f2dd1d33ca8cf81a8d519f",
    "signature": "0xfb26614a2f2311b2e8ad4bb64cdfd277f0fc700e48aae605b47b68db0ce49ead4a86b5563f15e83368455fe02970304d342824e16d5bbbe25a38c7d7a0aefad01b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}