{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3407",
    "entityType": "User",
    "nonce": "0x5dc4a2d560d804f588febb7733db46bc25c5da405299d40f8490d013a353830d",
    "signature": "0x1b1f21fb252e0d35bfdd8789c04ce255dabcc056cddde933f15311eece386fc179d51297b9eefa6b428d9b1dfebbf9c7486b2f075674a8ec51b89ac58985a9171c",
    "signer": "0x0BbaE3b1B763858507f1A953DC2f9Ef8343268D5",
    "userId": "307156675"
  }
}