{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "35918963",
    "entityType": "User",
    "nonce": "0xda28b54bc61fefad5aabe6b4fbb306cf66156c4c063f69b8ddb4b0cd73b6b57a",
    "signature": "0xa8bf5414604eeab5c5f2655139ccf410ee5daf726e8a885a191fdb302ddfcbc70e3427275ee2fd72cd613afa3e4a9bd0b792645da0e0d5091271b83d2f538e8e1b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}