{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "29283",
    "entityType": "User",
    "nonce": "0xb2ba9c66a896e722d8d0ff1221d436bc07374312f3afca8fc629f874b1b42291",
    "signature": "0xe07181ee376b5b602a84974c02224b095ec4376f7a23461bc31bbdc4420f7b3031b07d12a59396e0c30dc83690e3e5745b809e0361c025fd9512b63b52a1f9111b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}