{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x07aba203848c47eb198e715c318751a4dd8d9df480cdf0ba4e8db6fc0cf6b21c",
    "signature": "0x4af4ddaef68bcb47dafa27782a1c8bae751341506df5956c8e31a38de8d6a8bd5cac8daf6e26153249414eb5bb272f012be00bd7269980cd40e7799aaa4a6e741c",
    "signer": "0xc90839A5D830Cd5fBe0a79382b86F5178Ca98234",
    "userId": "617114289"
  }
}