{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318498",
    "entityType": "User",
    "nonce": "0xfc509e07aab29cbae67197690cfd51ce9e73e02a2fc8fa81a8117f54f46bce9b",
    "signature": "0xc1ce630bd27662b0d29d6b6e9f820b5df8efd4ab4a80a682496c9b31c64aa92736cc51e140517d88a567ea45308ddcc4e0b585f5f021282642b8e647dd20421c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}