{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318437",
    "entityType": "User",
    "nonce": "0x43734edede90f3257a1504f8ff69b0a00f7c17b9ea5856cc3a0bd05e01cfb120",
    "signature": "0x80f4ba5d4ca02b1f3e30421514a07fe850f529cef6d42ab4c06d45fbf02602b9567137765631017a4f3aefb3be13bd8b82d5d1a1a6edae6427d0b450f5f74d5d1b",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}