{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395",
    "entityType": "User",
    "nonce": "0x3a57467a9d9ba0428ed47604a21307f753b87f50c8143f53a9b3bbad26c3c6e0",
    "signature": "0xcfccd3291d3302a9a45ebb58f007afa54f5bffb80fc75a52c714b7d7e906bc0e1e048add92c5d722b9e1093e3778def676310b1689b5424aca81bf7b1822a52f1c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}