{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "618025803",
    "entityType": "User",
    "nonce": "0xef3335e6faa2a4528d0ce115f2bb37ea3386d927435ac8bd294dbfbddfa043cf",
    "signature": "0x88d614563151f0f2f7ee752dc36a6b2efc8cbc856be46de5bf4e9067cd1a1ffe0839fd91cc2aeb54bd6d7fc8629928e91539e3801d36234c409d11131e353e141b",
    "signer": "0x44567269b2165376Bd13d6bECFDE4A02F3ef59AD",
    "userId": "49012201"
  }
}