{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "278883",
    "entityType": "User",
    "nonce": "0xee5cbbb7462b4959e9e66084667bcc524012cbf2c1361922ee8c7886a9e1b36a",
    "signature": "0x07e94382ac44ef510bc2d30f93476238a06b9c59327cd9b5e72061985803d1701b31605f9b48fa7e6907ef8fa2dd206b7472a79b860858215d73c69e9817e1f91b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}