{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4785",
    "entityType": "User",
    "nonce": "0x465fdfd61a4b92744bb1f39782b0a8916d1180ecddb725d0285c2772da33bf84",
    "signature": "0x17e65517d64e4c8edabe75eb4da8d773bd91b19321e68499a1c06177cc8a63167dc973756001c41bac4982858a97172f1e4ffb2ea61fa8982238a40e5c9118031b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}