{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1308211",
    "entityType": "User",
    "nonce": "0x653baacdb03574ef1b64423ed06ecde89c5426c7aa836dff0483687005634781",
    "signature": "0xbbc44972a976367d98aac6e236e4d3ed176d084a74891b5940cd47146964742307d53baa25c636a390a62b0a154220853e6e82558a354de5b88646c1a6ac62b71c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}