{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353898",
    "entityType": "User",
    "nonce": "0xb300919b34e57cf055ba5c937f8a141f1a8c6aeeb576297aa4291f0747f36c44",
    "signature": "0x43fe5a8ed73b3d469834e8d36a149fd6bcab2325c0b4bbbbf15bb38e712499aa51317309c1fa6e65596b1a8ea17cfeaf8f49fabbd897e96230d8e03bbc607a261c",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}