{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x5dde7689df535cc962891dcf94e868f028f2dc4011e5153ece5c67cde30ef8ca",
    "signature": "0x2cedf1a4d9d8a6766b0ec283b6e37c4f8c58cc01dae30799dfe83c8e52de17b9576f4be61cae6cdc094ac5631d63158a5f74332228107209f1cb04014cf968a31b",
    "signer": "0x1D9e1d82A512b9A5b9b44ca178151B46959E9E5a",
    "userId": "888092692"
  }
}