{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "858479840",
    "entityType": "User",
    "nonce": "0xccd8046e4999fa14bd26ce37c6cb7334f23f1314a61b184189a4978df4eb5ba6",
    "signature": "0x9ff92deeca579c04d3eb2275336769b0d2c284d22646e0dc5d15e8de9b10978a350e5914e733f79ac1f3f9a6e99dada5a04437a870c9393cd235c0867adbf1ce1b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}