{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355113",
    "entityType": "User",
    "nonce": "0xec5d737e220cd1f03ecb35c2cc145342bfa1fe58fe85153531953dfd1418b4f6",
    "signature": "0x29da4b4d1e6320026e853e571f9fc475b239c058a3720f5f6ec4b02b7c1790570f455a6c3259472e36c922f85af1c71d0492b1123b923c0fd8cb3ad9e02c173e1c",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}