{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75675",
    "entityType": "User",
    "nonce": "0x5503c2d7ef6a6c0b7d43b1437a826cd7713fc402d238613d13e01d3b3f041fc4",
    "signature": "0xca72d103860371a9b59d7b0b247504e71342c53409567632b53bf9d44415909a68672ca7816fe3ce2d6a6e03e1acc34bb9c3af096bc1b6f471935c9fd93cea841c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}