{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89433",
    "entityType": "User",
    "nonce": "0x7e5562e593c29af53a74fbe768e8c7449ff4bb05ed7089123e4c8a2330a34bbb",
    "signature": "0xad2e16e09a534c79e3373b2bef50cbde4154ce306ca48624e5529b91f308c0886824f576983260c657e4f0bdb81bbdf16eecc8d14a2b9cabef55f82984bbf02e1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}