{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa2b2591a962f40bcd9e3a9a22c38fc5c85df534c8e4c227308ed1ea8263160b7",
    "signature": "0xa7e9efc1ebc93298a5d45252224bbe11c0d5670fd396575e56b4c4110d98a13967185688c32cd2cbbb6350847d03aa39ec24102af536f624ee79c10003532ecf1b",
    "signer": "0x6ecE2D82C15fa37cd66A99B21fffD5ad71a32457",
    "userId": "71132378"
  }
}