{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14509",
    "entityType": "User",
    "nonce": "0x67d9050851341a6411e14137415f296164f5df770b2d3b9bedbdda27509fde79",
    "signature": "0x62a7194819101485defbddd1c31fc23530a2380173f76d78b434958a8b76b2b04bfe558312027fc6fcf7410a5c92b78ec726b3b50840d774b49cbe53099059641b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}