{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5364e4dcb12f17e1a8e516b3e3763bfe0846bfc725563de314b9f20e942c44b9",
    "signature": "0x360caa776847f72f07a4c50da4532d00856854b4b854a7e161c94259eeb4fc522607a0cd515888f2a3bbaadda5f8fefc461dd8375ece6ef91021d06c37013f0b1c",
    "signer": "0x7218A0B8E2E7027fAD6E14A85720FfE12a6db4BC",
    "userId": "411959411"
  }
}