{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923551697",
    "entityType": "User",
    "nonce": "0x685a37961d13c5cd608e3b573c67ed5a7bbbda812573b27efc68e02c77d74a98",
    "signature": "0x994d9193d404d9a92822a1e2e4330b117d53166a169aff1a70016326ac05812a5caefc46cab78ea75989cff02af1f38494c6c280497177d5984efcdcad10c65a1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}