{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74388",
    "entityType": "User",
    "nonce": "0x261f42c256afcf53c22200f5be54be5fe218589a7d836ccf5b10cb1e142de1c4",
    "signature": "0x3159c5481a421b033e1dad2fee8ea44c97d27d6fd1fe7dee7c4733d1220507c91f5258dedcc524ea1a5b266f77293b2632a8278c505192043acb9477de08bd081b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}