{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "345951",
    "entityType": "User",
    "nonce": "0xd69e36791e01d1865403ecbfe24367f0b15aaecb957ff68cc85d70fdb939602f",
    "signature": "0xe0b88513717827a95f45ef84e2b9f00d8c4c42d35656aeb9610d8afa84f4eeb84160a71e65eadc49705c9e0856796287a3e1749a64ce1d03c9c45d009e6610911b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}