{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100",
    "entityType": "User",
    "nonce": "0x44b36a8cbf903222db6e716dc17266901eb1e07200adac54544c9a33532a0e5b",
    "signature": "0x702c0d6ceab63e8c919883395216ecf1c7f27adc81eb33d27f802d6631593759043573c4b02258cae2e7e7e6130b3740cf9d8ffc3cf9a4928dd89985f5c3a8671c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}