{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x80976261d5e9458601115799eb659f00529c135a2b237078a7aa4d4ae9526aa0",
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    "signer": "0xE8Ec1bAC66ca573950B30a9B5Bff2793f9CC5C29",
    "userId": "734516636"
  }
}