{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf27f93a66d62eb20cf4bb582ba16feefba31a92792b5332658909d13565cb4d2",
    "signature": "0xd28b2a508696992da103184acb8675ab5608a63e8e777f3d153c97a14d474fad50e054262d479b457aaf70f7c2ef66eaf92ebb125ddaef50e9512e2b9e0d3a341c",
    "signer": "0xF146DAbBEa4a64091535c0e39A419D65150Fa66c",
    "userId": "449203874"
  }
}