{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4628",
    "entityType": "User",
    "nonce": "0x839f5118b54d4ec0428b15fb6b8e45083840420c0e9606e71be4feec3f90eb51",
    "signature": "0x78819f8c0e190c453038307d2ace673cb4cd53d01b5f6fb31215c6fd6db7cd32684382a9346249b916fc1ecda503c4af84023e18bfd4e708d1cc40391ab2a8711c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}