{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xafe4cd51271354d63bbe49fdd500d7366bdf2f694963c69aaf1eee5d5d9b7245",
    "signature": "0x9e00a29eb90b9e3b4639f31b725072fac537a7f7a81bcfac1c680761b04c9d0f0dfb693e527d4f226019e21be2f19f61f1de9474b1d2428a420fa93b539e179e1c",
    "signer": "0xD5C63F668425e8DccaDf64000E6BCdbB8861ec11",
    "userId": "603561206"
  }
}