{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "737872723",
    "entityType": "User",
    "nonce": "0x03a4b7e873330bbbf09b1f17d58d134f3082b672247f6db422ce3f205da07bf3",
    "signature": "0x4dbd527f998ba75e0be6ebf28374463ab0f96f569b5abef27ad7a7709611bbf458cfd4ab24c6e0cd90f927631fb8bd82ee331046416dcb3cae6c3fee8f9ba2b51b",
    "signer": "0x176e72dFeDc28F932BeC73B513ff006a4b45dDa2",
    "userId": "93920271"
  }
}