{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632918751",
    "entityType": "User",
    "nonce": "0x80cf66efe7587d5ec3be2f9dac0945843a1eac5209460a60e0bd6f3ac6982019",
    "signature": "0xc156d3b4387435a0eb1afa2eedb35f2a1c9e86634550dec26e6bed14095c9cfc3d178e6ba461e2e8c3eeb57c044584e5819872e43e91d4a1b90ee8d8a5ad650a1c",
    "signer": "0x98591a180A20DF036EB2C9D2c24B449E65939Df5",
    "userId": "338604526"
  }
}