{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc7d24e3c3e27289e278eecbc2c6a07e445bdb06f61c3471f6f7cf3f47a5dabcc",
    "signature": "0xa1823a1493afff3de1a25942490c4271562563c270a8ef80fbe2f6e1ae2a876e2b82727a65899ce07fd483cec1d87d658d1ab823852f07d97d4ea70c586c56561b",
    "signer": "0xd6BB6a0e49939AA087B1cf2c9CD3210bbffDf9b0",
    "userId": "779051513"
  }
}