{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1873428",
    "entityType": "User",
    "nonce": "0x5d2046ccf001341276f853c044129e316200ba2310c7efe0cf86db88334aed37",
    "signature": "0x6f9ee5a67bbe0c3148f6c58113e3fc05d372d537e497130c3121f2ad4a4833f67cfcbe85cd5b87ed40588392ed2d18e87b802800e4f911db073a4d7ef1c200b31b",
    "signer": "0x926F8d71a7109CF6Cce00DA74e1BcF50aAf63E8b",
    "userId": "358546053"
  }
}