{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "762208",
    "entityType": "User",
    "nonce": "0x1c5e6f962f405f274b5f9e52c9e33f655df9100938453ec515a3f231c6bda93c",
    "signature": "0x2463252befc2ef39c220f533725babf5908daa74d0b1e2ae95cc87634ad205f26d3e23976929b421615460a00c6993e7a76f3bc432c2bc7c06ee6253a72bdc231c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}