{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x32f4eff2fb3511a665ec73c68b77f955b534204b9aaa520cdebf0ae347b67f55",
    "signature": "0xc5fee2fb3d6c7422ad5bf9f4410c7979137fa08c11843f3d56bb23330f8b9ba942451ea7eaa689c57ff780913176ada5194ade32593818a6550346fb5226d34c1b",
    "signer": "0x89Da1135f434C0AD99f97F58B88d82E298931B9a",
    "userId": "379581888"
  }
}