{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394061",
    "entityType": "User",
    "nonce": "0x9738ac332121cacdb53671ace2f28faab84aeca523207841e64d42bf880297fe",
    "signature": "0x64632b6c5e789cc607d6234b9225d0c848f401e5bf1b3fe2bb051c420571adff309167967eb98ebae8b70a8a5802bf877559868c31b1c5a12d25dc9571edf95e1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}