{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0xa64fc52af0f8ac24d52ca1f4174f0744835303fea623e1c1061e8cc5a01727d7",
    "signature": "0x04eeb6973878da9165c49f313d23976f4f48c2c64f02986e6a061dbef25964fa5542771ececee0f36e1db1c6a68370e370b2828f161ac0fdfee175d9a98d94041c",
    "signer": "0x5FB1dF0c125C1F3cdda251a598Cb878a0A390F18",
    "userId": "25189733"
  }
}