{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121201250",
    "entityType": "User",
    "nonce": "0x9a22f5b27d3ad4035350bf388a57eb7c1ae7535818d56f31f0644660d3f3390f",
    "signature": "0x6e14dc1edb83f25c75f621bbf4343eea5d18301914f9b7bc4e986cae5e1542e3460ced3f7ca58b07f83f27be9f1c49fe2dceb0953b08fbf369e110da0601032b1b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}