{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72157",
    "entityType": "User",
    "nonce": "0x84de6ebb0cfe551853dcb1284c37fa50608fd987709da5aa2b4208f7dddb9002",
    "signature": "0x9dd2b7f655ea6074777b7c23451a7d129bfccce09944fb6dbdb3d19619d36edb33c5d04cc60866e6d6d237ffaf48f63cad63de63cad5d1ea116c9b59e407f6841c",
    "signer": "0xA74717FCae86345af440c67eC401895C927E002c",
    "userId": "561271"
  }
}