{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "114668494",
    "entityType": "User",
    "nonce": "0xfd13247b83f492c79c6e50527ea33a5b92bdf0be8d1b597118aff722159b3e6e",
    "signature": "0xa4411ee4a37b23bb4b49f6e05bde4139fa34d66a3a7a0b8c650c8e5a99b90645736f943d9e9c9aa37cb93ef1d08b0a1be0f20edb4c8d3be2c088b9e7d928f3191b",
    "signer": "0x4ad870a0C318214b4796d1464BC8Dc57C6b84C12",
    "userId": "408505072"
  }
}