{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2735",
    "entityType": "User",
    "nonce": "0xa09a47da54903388d54fbceee1b40d8d5d8a9d6e60a69ba167042afc49c585b8",
    "signature": "0x522f4d746b7e998ad0d4e4506d9ca61ae371e24949eed4da3a8504c5013c200358a8cc5fd28b8edaf3d165348542a698fadb1f25a3180319c6757957e9b2cfc21c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}