{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8d7444912e9811026bba8712b66ffb26e2e8f3df8b6dc97601456de7163a6a24",
    "signature": "0x94887bb9327be90fd4df6c4b22f8a9c55fa220a445b75a01a0b067342e652c5d4359f0822c9d6761991117d6d6db4e2d57cf1e914544eaa96d10d3f10c9b33521b",
    "signer": "0xd34259D77c85379EE978514Be14547d9AB1f5F3E",
    "userId": "806015301"
  }
}