{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6709621",
    "entityType": "User",
    "nonce": "0x953b593d41be0344686277a92d9110f146fdc8e90f1306a6eeec875148e0b498",
    "signature": "0xaa5ee512f1bf68df44ffda2c3172a35c25aa4225768f9286bf84405b217b7b062fbf2970c2233827d66304946e002c0137e3d0cdbc0cd0725f0072310a2836491b",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}