{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x21a1826ff600284124f4c0cadf983fd6bae89dc5e2e555c7aef72fd14ba38afb",
    "signature": "0x0d2552de6afbffce4f92e68f4812f1560afff4dfb3665705dfd288964a1a5dd409bb8af195ac35e3bd21b4d5cda2022c12bf7b891c3899fc7bad95705a814dbd1c",
    "signer": "0xc95EFE880463dc9E6fC74760701bBb0A05704C9c",
    "userId": "95927626"
  }
}