{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "761344",
    "entityType": "User",
    "nonce": "0x018681e30e01780c7be30f9dee174eed9bac85d63fb15671d3975edda01462e3",
    "signature": "0x48dbb2155a6910e7c1f4dc4c129e0fa2b08bd8a11297a41064f3fdb751ef26f5035324f4b9ca03f7752c0b06b00c516ed99190f3b9823de45bdd8ce0f73828971c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}