{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x209241250eee95b201676c7a640cb0484d838e355c138f3cf969a1d77795ba22",
    "signature": "0x2642447101eaa8156bc14af19852eca6dbe4225a54fcc41720398037128f0b967bb65e4586ff5faba1d1dd4b3200828324cd5494aa1f71fd769224bd4e7ecbcc1c",
    "signer": "0xAC14dDb0278C6710e9781140f79c82FaB40aE628",
    "userId": "970614080"
  }
}