{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x24a91cde32ac22c552ae7c1c824ffebf150964055df076f76e98d091ce86984c",
    "signature": "0x9c4340f18585e3469068829a9252a0c9578873a4c7ec7a97354f7447b372aeb602924954435fde5b21c68121f910904274fa0744ac3004112f63480269a0047a1c",
    "signer": "0xC845532143b1d2fb62a072EdE6762995AdA842ac",
    "userId": "596792511"
  }
}