{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27853",
    "entityType": "User",
    "nonce": "0x72d907e4672d22b9593b6e0d281c63f9d65c56815a02ca3da05746f057d94ff2",
    "signature": "0x8db8cfe020e7ccc9deef532be656fb565a2fc174ca52f63afc7a72baab5ad1da60efdc21b07e7c8667e5fc83f2e0f98fba6fd0ce2ca86aaf952a06383b5a92491c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}