{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x7160ef047407524d80207812af42e8c23b27b009413e386306598f73f6b3ea9e",
    "signature": "0x3cd1fe4920af835c42218fcc9a83b01a457352949e927bca1dc80b122cd2950b3e073a210e9e68f277306c9fd6752f41c9e704d5978f6079a4610dd75e5eb5521b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}