{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x37719805ca7a6f9a027d758efd317b5d2732c197c2dccf4d62532af5177e810c",
    "signature": "0xa05489d7e4b5161c8a60dbfe805a565c44e73ac0884b932bb9e20a6c617fa07313b4388193a6d5c70b81ac92824c9e08d533aaa0fe71ce448b6488cb5f703b5a1c",
    "signer": "0xb72933b46691c63EE32E01840F90A701FB3B81F6",
    "userId": "283528742"
  }
}