{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x493f64ba158ccf29ded7310d9b133eb69cfe1a3ee4dfb6bbdb3cbc2250e63500",
    "signature": "0xb0b83b406928469155dd50193429bd17823c02a8d44051488641e5d19710729d6eaec6df4b590f913a31abd0fcac2f792bd38ffba3a58663390dd0593d526fb81c",
    "signer": "0x983e5042cebE0773dBB75B5432b62c5f12c4686b",
    "userId": "380461014"
  }
}