{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "977815577",
    "entityType": "User",
    "nonce": "0xda63a3f7efcb61d0ab13180537eb0f5c508fcb7d54b44c0a3a6704a6d1d18787",
    "signature": "0x1490b0e36e649c6cd6c9580544e4a7630746177423a378d87d232b1a796a7ec108e384902d613f92318c08fb63e360d6a290a3ccce7d8df73bfb52cd758b60531c",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}