{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9f136280f96ae06109543d0300216c5748993512d63fc688657bef8cd71f728f",
    "signature": "0x7371decbe046aaa050bab9018a706a8a2ec179bcdf1d99c4140865767b971ffa61856c62b7c609710eb6b01d9c95500c1fc6d005fae9beb86b1de060b79df2cc1b",
    "signer": "0x8B2228a0319Be8E18BB73968673132cc1fB70797",
    "userId": "16352228"
  }
}