{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcc0a3aa8f64c73d853520fa90c7871e64de044bb3c2389ba140a03bc27446ea2",
    "signature": "0xfd523549990983a8a64a42d93e30960d9f1c4e4eed2a3b0cd800748d10e0e76944704e90e68c2429b91db42501d9662ce26628731ec547e7e6ea2d7a7a8a4ad11c",
    "signer": "0x1b04339807DD6fe43254CDD93B3Ed93472abe039",
    "userId": "988756985"
  }
}