{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0x2b22dcad2106479e9ad117ad8008fdcb6539b24da878a4ec487b0053a96b1470",
    "signature": "0xc424668b65d92585aeedc0db05c1db056f99b13bcfda85fb5f8fd640647ca3aa75d2ad5ff942b405453a1f62bfb8f48a3d83e5796e8bb940951440abe3058bef1b",
    "signer": "0xd2034C6636b4261c48403302a162304227a2BBFd",
    "userId": "39985301"
  }
}